SecurityCalendar.com

> new york, ny · verified nov 3, 2026

New York

New York, NY cybersecurity events & groups

New York's security calendar runs on monthly hacker meetups (NYC2600 on first Fridays, NYSEC on third Tuesdays), professional chapters such as ISC2, ISACA and OWASP that meet in Manhattan or online, and a Hack Manhattan red team study group and locksport workshop that alternate weekends. The community conference is BSidesNYC at John Jay College each October (held October 17, 2026); the NY Metro Joint Cyber Security Conference is on November 5, 2026 and NYU's CSAW runs November 12 to 14, 2026.

Verified Nov 3, 2026 · Covers November 2026 through May 2027 · Times are Eastern Time

New York metro: Manhattan, Brooklyn, Queens, the Bronx, Staten Island, Long Island, Westchester, Jersey City, Newark, Fairfield NJ, Westfield NJ

Start here

  1. NYC2600: Free, open and monthly; just show up at the Citigroup Center food court on the first Friday.
  2. NYSEC: Free and open: an informal drinks meetup for security people on the third Tuesday of each month.
  3. Hack Manhattan Locksport Workshop: A free, hands-on lockpicking workshop every other Sunday at a public hackerspace.

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Datebook

November 2026

CUCyber (Columbia University Computer Security Club)

Thu, Nov 5, 2026 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

NY Metro Joint Cyber Security Conference 2026

Thu, Nov 5, 2026 · Conference on November 5; workshops follow online (date not posted)

Civic Hall, 124 East 14th Street, Manhattan

The 13th edition, organized jointly by ISSA, ISACA, ISOC, HTCIA, InfraGard and ISC2 chapters. The organizer says the extended workshops take place virtually after the conference and gives no workshop date. Registration is through Tixtree, whose pages load by script; no price could be read, so access (paid) is a judgement call.

ConfirmedConferencePaid

DC862: Meta Ray-Ban Display Attack Surface Analysis

Fri, Nov 6, 2026 · 7:00 to 9:00 p.m.

Online (Discord video) · Metro area

A remote meeting hosted on the group's Discord. No price is stated; listed as free as for the group's other meetings.

ConfirmedMeetupFree

NYC2600

Fri, Nov 6, 2026 · 5:00 p.m.

Citigroup Center food court, 53rd Street and Lexington Avenue, Manhattan

Per published schedule; confirm with organizer.

MeetingFree

CSAW Cybersecurity Career Fair

Thu, Nov 12, 2026 · 1:00 to 4:00 p.m.

370 Jay Street, 2nd floor, Room 233, Downtown Brooklyn

The organizer says the fair is open to all CSAW attendees and lists DTCC, Trail of Bits, Zetier, MTA, Cisco and Kai Security. How general visitors register is not stated, so invite-only is a judgement call.

ConfirmedCareer fairInvite only

CSAW'26

Thu, Nov 12 to Sat, Nov 14, 2026

NYU Tandon School of Engineering, Downtown Brooklyn

Student-run cybersecurity games and conference, in person November 12 to 14, 2026. Final rounds are for teams that qualified; the site gives no general attendance or price details, so invite-only is a judgement call.

ConfirmedCTFInvite only

CUCyber (Columbia University Computer Security Club)

Thu, Nov 12, 2026 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

NYSEC

Tue, Nov 17, 2026 · 6:00 p.m.

d.b.a., 41 1st Avenue, East Village, Manhattan

Per published schedule; confirm with organizer.

MeetingFree

The Official Cybersecurity Summit: New York

Tue, Nov 17, 2026 · 8:00 a.m. to 6:00 p.m.

Sheraton New York Times Square Hotel, 811 7th Avenue, Manhattan

Run by CyberRiskAlliance. Standard admission is $325; admission is reserved for active cybersecurity, IT and information security practitioners and registrations are reviewed. The ISACA New York Metropolitan Chapter lists a complimentary-pass offer for its members.

ConfirmedSummitPaidVendor-hosted

CUCyber (Columbia University Computer Security Club)

Thu, Nov 19, 2026 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

DC908: The Com and the Cybercrime Ecosystem

Thu, Nov 19, 2026 · 7:00 p.m.

Westfield Memorial Library, 550 East Broad Street, Westfield, NJ · Metro area

A talk in the Large Meeting Room on the first floor. The page states no price; the group's other events are free.

ConfirmedMeetupFree

CUCyber (Columbia University Computer Security Club)

Thu, Nov 26, 2026 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

December 2026

CUCyber (Columbia University Computer Security Club)

Thu, Dec 3, 2026 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

DC862: Holiday Party 2026

Fri, Dec 4, 2026 · 7:00 to 11:00 p.m.

Rabbit Labs Learning Lab, 499 Ernston Road, Suite A4, Parlin, NJ · Metro area

In person in Parlin, NJ, or on Discord. The page invites a $10 to $25 gift for the present exchange and states no admission price.

ConfirmedMeetupFree

NYC2600

Fri, Dec 4, 2026 · 5:00 p.m.

Citigroup Center food court, 53rd Street and Lexington Avenue, Manhattan

Per published schedule; confirm with organizer.

MeetingFree

CUCyber (Columbia University Computer Security Club)

Thu, Dec 10, 2026 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

BSides Philadelphia 2026

Fri, Dec 11, 2026 · 8:00 a.m. to 6:00 p.m.

Live! Casino & Hotel Philadelphia, 900 Packer Avenue, Philadelphia, PA · Regional

Regional: Philadelphia is within about two hours of New York. The organizer's page lists December 11, 2026, 8:00 a.m. to 6:00 p.m. at Live! Casino & Hotel Philadelphia.

ConfirmedConferencePaid

NYSEC

Tue, Dec 15, 2026 · 6:00 p.m.

d.b.a., 41 1st Avenue, East Village, Manhattan

Per published schedule; confirm with organizer.

MeetingFree

CUCyber (Columbia University Computer Security Club)

Thu, Dec 17, 2026 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

CUCyber (Columbia University Computer Security Club)

Thu, Dec 24, 2026 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

Brooklyn NYSEC

Tue, Dec 29, 2026 · 6:00 p.m.

Someday Bar, 364 Atlantic Avenue, Brooklyn

Per published schedule; confirm with organizer.

MeetingFree

CUCyber (Columbia University Computer Security Club)

Thu, Dec 31, 2026 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

January 2027

NYC2600

Fri, Jan 1, 2027 · 5:00 p.m.

Citigroup Center food court, 53rd Street and Lexington Avenue, Manhattan

Per published schedule; confirm with organizer.

MeetingFree

CUCyber (Columbia University Computer Security Club)

Thu, Jan 7, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

CUCyber (Columbia University Computer Security Club)

Thu, Jan 14, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

NYSEC

Tue, Jan 19, 2027 · 6:00 p.m.

d.b.a., 41 1st Avenue, East Village, Manhattan

Per published schedule; confirm with organizer.

MeetingFree

CUCyber (Columbia University Computer Security Club)

Thu, Jan 21, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

CUCyber (Columbia University Computer Security Club)

Thu, Jan 28, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

February 2027

CUCyber (Columbia University Computer Security Club)

Thu, Feb 4, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

NYC2600

Fri, Feb 5, 2027 · 5:00 p.m.

Citigroup Center food court, 53rd Street and Lexington Avenue, Manhattan

Per published schedule; confirm with organizer.

MeetingFree

CUCyber (Columbia University Computer Security Club)

Thu, Feb 11, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

NYSEC

Tue, Feb 16, 2027 · 6:00 p.m.

d.b.a., 41 1st Avenue, East Village, Manhattan

Per published schedule; confirm with organizer.

MeetingFree

CUCyber (Columbia University Computer Security Club)

Thu, Feb 18, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

The Official Cybersecurity Summit: New York (February 2027)

Tue, Feb 23, 2027 · 8:00 a.m. to 6:00 p.m.

Sheraton New York Times Square Hotel, 811 7th Avenue, Manhattan

Run by CyberRisk Alliance. The summits list shows February 23, 2027 at the Sheraton New York Times Square Hotel. No price is shown for this date; the November 17, 2026 summit lists standard admission at $325 and is reserved for practitioners.

ConfirmedSummitPaidVendor-hosted

CUCyber (Columbia University Computer Security Club)

Thu, Feb 25, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

March 2027

CUCyber (Columbia University Computer Security Club)

Thu, Mar 4, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

NYC2600

Fri, Mar 5, 2027 · 5:00 p.m.

Citigroup Center food court, 53rd Street and Lexington Avenue, Manhattan

Per published schedule; confirm with organizer.

MeetingFree

CUCyber (Columbia University Computer Security Club)

Thu, Mar 11, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

NYSEC

Tue, Mar 16, 2027 · 6:00 p.m.

d.b.a., 41 1st Avenue, East Village, Manhattan

Per published schedule; confirm with organizer.

MeetingFree

CUCyber (Columbia University Computer Security Club)

Thu, Mar 18, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

CUCyber (Columbia University Computer Security Club)

Thu, Mar 25, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

Brooklyn NYSEC

Tue, Mar 30, 2027 · 6:00 p.m.

Someday Bar, 364 Atlantic Avenue, Brooklyn

Per published schedule; confirm with organizer.

MeetingFree

April 2027

CUCyber (Columbia University Computer Security Club)

Thu, Apr 1, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

NYC2600

Fri, Apr 2, 2027 · 5:00 p.m.

Citigroup Center food court, 53rd Street and Lexington Avenue, Manhattan

Per published schedule; confirm with organizer.

MeetingFree

CUCyber (Columbia University Computer Security Club)

Thu, Apr 8, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

CUCyber (Columbia University Computer Security Club)

Thu, Apr 15, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

NYSEC

Tue, Apr 20, 2027 · 6:00 p.m.

d.b.a., 41 1st Avenue, East Village, Manhattan

Per published schedule; confirm with organizer.

MeetingFree

CUCyber (Columbia University Computer Security Club)

Thu, Apr 22, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

GPSEC New York City (GuidePoint Security)

Tue, Apr 27, 2027 · 8:00 a.m. to 4:30 p.m.

New York City (venue to be announced)

A one-day conference run by GuidePoint Security. Attendees submit a request to register that the organizer reviews; non-sponsoring partners, recruiters and competitors are not admitted. No price is stated.

ConfirmedConferenceVetting requiredVendor-hosted

CUCyber (Columbia University Computer Security Club)

Thu, Apr 29, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

May 2027

CUCyber (Columbia University Computer Security Club)

Thu, May 6, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

NYC2600

Fri, May 7, 2027 · 5:00 p.m.

Citigroup Center food court, 53rd Street and Lexington Avenue, Manhattan

Per published schedule; confirm with organizer.

MeetingFree

CUCyber (Columbia University Computer Security Club)

Thu, May 13, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

NYSEC

Tue, May 18, 2027 · 6:00 p.m.

d.b.a., 41 1st Avenue, East Village, Manhattan

Per published schedule; confirm with organizer.

MeetingFree

CUCyber (Columbia University Computer Security Club)

Thu, May 20, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

CUCyber (Columbia University Computer Security Club)

Thu, May 27, 2027 · 7:00 p.m.

CSB 480, Mudd Building, Columbia University, Morningside Heights

Per published schedule; confirm with organizer.

MeetingStudents only

June 2027

International Conference on Cyber Security (ICCS 2027)

Mon, Jun 21 to Wed, Jun 23, 2027

Fordham University Lincoln Center Campus, Manhattan

Run by Fordham's Gabelli School of Business. In-person registration is $1,175 and opens in January 2027; admission is by approval only. The page needs a browser-style cookie to load.

ConfirmedConferencePaidVetting required

On the radar

Announced without a date, or expected from past editions. Not confirmed.

BSides CT 2027

Usually held on a Saturday in late September; 2027 dates not yet announced

Fairfield, CT (2026 edition at Fairfield University) · Regional

ExpectedConferencePaid

BSidesNYC 2027

Held on a Saturday in mid-October in 2024, 2025 and 2026; 2027 dates not yet announced

John Jay College of Criminal Justice, Manhattan (2026 venue)

ExpectedConferenceFreePaid

HOPE 2027

Held in mid-August in recent years; a 2027 edition has not been announced

New York City

ExpectedConferencePaid

New York City Cybersecurity Summit 2027

The 2026 edition was held on October 22; the organizer plans another edition, and 2027 dates are not yet announced

New York City (2026 venue was the Marriott Marquis)

ExpectedSummitFreeVetting requiredVendor-hosted

SecureWorld New York City 2027

Held on October 29 in 2025 and 2026; 2027 dates not yet announced

New York City (2026 venue was the Marriott Marquis)

ExpectedConferencePaidVendor-hosted

Summercon 2027

Usually held in July in Brooklyn; 2027 dates not yet announced

Brooklyn (2026 edition at Littlefield)

ExpectedConferencePaid

Groups & associations

Professional associations

IAPP KnowledgeNet New York

Manhattan law firm offices · In the city

Irregular evening panels hosted at member firms; no meetings scheduled

A privacy professionals' chapter. The IAPP chapter page says no meetings are scheduled as of November 3, 2026. The last meeting found was a health data privacy panel at Orrick's New York office on February 10, 2026, co-hosted by the chapter.

Quiet: last activity Feb 2026Free

ISACA New York Metropolitan Chapter

Manhattan and online · In the city

Seasonal membership events in Manhattan plus online certification review courses

The Fall Membership Event on September 24, 2026 was at the Empire State Building, 20 West 34th Street. The chapter home page also lists partner webinars (October 21, November 4 and 18, 2026; the event page gives November 10 for the AI governance webinar) and a morning session at SecureWorld on October 29, 2026; these are not counted as chapter meetings. Co-organizes the NY Metro Joint Cyber Security Conference.

PaidMembers only

ISC2 New York City & Long Island Chapter

Manhattan (NCFTA at 1 Penn Plaza, Civic Hall or Horizon Media), Half Hollow Hills Community Library in Dix Hills, and online · In the city

Monthly chapter meeting on a weekday evening, held in Manhattan and on Long Island at the same time and streamed online

The October 20, 2026 meeting was scheduled from 5:00 p.m. at NCFTA, 1 Penn Plaza (21st floor) and at the Half Hollow Hills library in Dix Hills; no source shows it was held, so last activity stays at September 24, 2026. Non-members register for a nominal fee (no amount is stated); fees are waived for chapter members (annual dues $40, students $15). No November 2026 meeting is posted. The former (ISC)2 NY Metro Chapter domain (isc2chapter-nymetro.org) timed out on November 3, 2026.

Paid

ISSA New York Metro Chapter

Manhattan · In the city

Main activity is the annual NY Metro Joint Cyber Security Conference; no chapter meetings posted

The chapter website lists paid services and no events. Its last dated activity is the 2025 conference on October 30, 2025; the 2026 conference is on November 5, 2026. nymissa.org returned an HTTP error on November 3, 2026.

Quiet: last activity Oct 2025Paid

OWASP New York City Chapter

Manhattan and online · In the city

Irregular; online talks plus in-person meetups and booths at other New York conferences

The September 23, 2026 panel was online; the last in-person chapter event was at the New York IAM Summit on July 23, 2026. The chapter's Meetup page also lists a guest-pass offer for SecureWorld New York City on October 29, 2026, which is not counted as a chapter meeting. No later chapter talk was found. Meetings are open to non-members.

Free

Hacker and grassroots groups

Brooklyn NYSEC

Someday Bar, 364 Atlantic Avenue, Brooklyn · In the city

Fifth Tuesday of the month when there is one, 6:00 p.m. (next on December 29, 2026 and March 30, 2027)

The Brooklyn edition of NYSEC. The organizer's public calendar lists the next two dates, December 29, 2026 and March 30, 2027; the September 29, 2026 date is from the same calendar. The site serves only http://.

Free

DC212 (DEF CON Group New York City)

Usually Fat Cat Fab Lab, West Village, Manhattan · In the city

Roughly every one to two months at 7:00 p.m.; meetings are announced on Meetup

Meeting #46, "The Hiatus is Over", was held on June 19, 2026, and the Meetup page shows no later meeting as of November 3, 2026. The Meetup group is private, so venues show only to members.

Free

DC862 (DEF CON Group 862)

North Jersey; rotating venues and some meetings online on Discord · Metro area

Usually the first Friday of the month at 7:00 p.m.; venue changes

Meetings alternate between in-person venues in New Jersey and online on Discord. The October 2, 2026 meeting was at Jersey Spirits in Fairfield, NJ. The directory lists the group under Parsippany; the Meetup page is used as the organizer source.

Free

DC908 (DEF CON Group Westfield)

Westfield, New Jersey · Metro area

Roughly monthly talks and workshops on Thursday evenings

The October 22, 2026 Trivia Fright Night was at Westfield Memorial Library, 550 East Broad Street; the next talk is posted for November 19, 2026.

Free

Hack Manhattan Locksport Workshop

Hack Manhattan, 34 West 37th Street, Unit 2R, Manhattan · In the city

Every other Sunday, 7:00 p.m. (November 15 and 29 and December 13, 2026 are posted)

Run by the hackerspace; the November 1, 2026 session shows as held on Meetup. New York City has no active TOOOL chapter listed.

Free

NYC Red Team Study Group (Hack Manhattan)

Hack Manhattan, 34 West 37th Street, Unit 2R, Manhattan · In the city

Every other Saturday, 6:00 to 7:00 p.m. (November 14 and 28 and December 12, 2026 are posted)

An ethical red teaming study group hosted at the Hack Manhattan hackerspace, which also holds public open houses on Tuesday and Thursday evenings. The October 31, 2026 session was cancelled on Meetup. The October 3 and 17 sessions were not cancelled and are counted as held under the owner's rule for scheduled Meetup events.

Free

NYC2600

Citigroup Center food court, 53rd Street and Lexington Avenue, Manhattan · In the city

First Friday of the month, from 5:00 p.m.

The organizer posts one announcement per meeting and has posted Friday, October 2 and Friday, November 6, 2026 (5:00 p.m., Citigroup Center). No source states that the October 2 meeting took place, so last activity stays at the September 4, 2026 meeting.

Free

NYSEC

d.b.a., 41 1st Avenue, East Village, Manhattan · In the city

Third Tuesday of the month, 6:00 p.m.

An informal drinks meetup for security people. The organizer's public calendar shows the third-Tuesday rule with no cancellation, but no source shows the October 20, 2026 meeting was held, so last activity stays at September 15, 2026. The site serves only http://; the https:// address refused connections on November 3, 2026.

Free

The Sprawl

New York City; venue shown to registered attendees · In the city

Technical talks about every two months; no later meeting found

Edition 0x3 on February 5, 2026 is the only dated meeting found on the group's Luma page. sprawl.nyc showed no readable content, and the Luma calendar listing could not be read on November 3, 2026 (rate limited), so a later edition may exist.

Quiet: last activity Feb 2026Free

Inclusion and career communities

WiCyS NY Metro Affiliate

Manhattan (recent events at Horizon Media, 75 Varick Street) · In the city

Irregular evening mixers, panels and workshops

The last chapter event with a held date was Pride in Cyber on June 23, 2026. The affiliate site also lists October 2026 items (a Semperis film screening on October 15, the BSidesNYC village on October 17, and SecureWorld on October 29) with no record that they took place. wicysnymetro.org could not be reached.

Free

Women's Society of Cyberjutsu NYC Chapter

New York City · In the city

Irregular networking sessions

The WSC site blocks our tools (HTTP 403), so the August 27, 2026 End of Summer Networking Mixer date comes from search-result text of the WSC event calendar. The chapter's old Meetup group has had no events since 2022.

Free

Public-private and government

New York City Metro InfraGard Members Alliance

New York City · In the city

Member meetings not posted publicly

Membership requires FBI vetting. The alliance's events page again failed to load on November 3, 2026 and its past-events page showed no events. The last dated activity is the 2025 NY Metro Joint Cyber Security Conference, which InfraGard co-organizes; the status is a thin-evidence call.

Quiet: last activity Oct 2025Vetting required

Education and student groups

Baruch ISACA Cybersecurity Club

Baruch College, 55 Lexington Avenue, Manhattan · In the city

Club hour workshops (Thursdays 12:40 to 2:20 p.m.) and evening talks during the semester

A recognized student group of the ISACA New York Metropolitan Chapter. Its events page lists workshops and talks on October 22, October 27 and October 29, 2026 (Tor or Treat dark web workshop) with no record that they took place, so last activity stays at October 1, 2026.

Students only

CUCyber (Columbia University Computer Security Club)

CSB 480, Mudd Building, Columbia University, Morningside Heights · In the city

Thursdays at 7:00 p.m. during the academic year, in person and on Zoom

The club's public calendar lists weekly general body meetings through December 15, 2026, including a named session on October 22, and skips Thanksgiving week. The calendar is a schedule, not an attendance record, so last activity stays at October 1, 2026. Open to Columbia students, faculty and affiliates.

Students only

NYU OSIRIS Lab

Room 1066, 370 Jay Street, NYU Tandon, Downtown Brooklyn · In the city

Student-run lab; runs the CSAW CTF and competes in CTFs on weekends

NYU is an NSA/DHS Center of Academic Excellence. OSIRIS ran the online CSAW CTF qualifying round from September 18 to 20, 2026. The lab's home page loads; no broken OSIRIS link remains in this entry.

Students only

Conference series

BSidesNYC

John Jay College of Criminal Justice, 524 West 59th Street, Manhattan · In the city

Annual one-day conference in October

Volunteer-run. The 2026 edition (0x06) was held on October 17, 2026 at John Jay College; the organizer's site lists that date and a participant's October 18, 2026 write-up describes volunteering at it. The 2025 edition was on October 18, 2025. No 2027 date is posted.

FreePaid

HOPE (Hackers On Planet Earth)

Manhattan (2026 edition at the New Yorker Hotel) · In the city

Three-day hacker conference in mid-August

Run by the nonprofit HOPE On Planet Earth. HOPE 26 was held August 14 to 16, 2026.

Paid

SecureWorld New York City

New York Marriott Marquis, 1535 Broadway, Manhattan · In the city

Annual one-day conference in late October

Run by SecureWorld, an events company. The 2026 edition was scheduled for October 29, 2026 at the Marriott Marquis; no readable source confirms it took place, so last activity stays at the 2025 edition. The event page carries an "already passed" banner that the owner has identified as a site template quirk. No 2027 New York date is posted.

Quiet: last activity Oct 2025PaidVendor-hosted

Summercon

Littlefield, 635 Sackett Street, Brooklyn · In the city

Annual hacker conference in July

The 2026 edition ran July 10 to 11, 2026. The Littlefield venue comes from the NYSEC community calendar; the Summercon site sells tickets but does not name the venue in its text (and returns HTTP 403 to curl).

Paid

Technical user groups

Cloud Security Meetup New York

Manhattan, with an occasional Jersey City session · In the city

Irregular meetups, coworking sessions and cross-listed conference passes

Run by the Cloud Security Podcast team. Several listings are other organizers' conferences (LLM Day, SRE Day NYC, LLMday NYC on October 29, 2026); the last security-specific meetup was a CTF team night on April 8, 2026.

Free

Google Cloud Security New York City User Group

Google New York offices (Pier 57 or 315 Hudson Street), Manhattan · In the city

Quarterly meetings plus Mandiant community nights

Run by Google for Google Cloud Security customers and other security practitioners. The last event was a Mandiant Community Night on March 11, 2026; no later meeting is posted.

Quiet: last activity Mar 2026FreeVendor-hosted

Adjacent communities

Queens CyberTech Meetup

Coffee shops in Kew Gardens and Forest Hills, Queens · In the city

Irregular afternoon coworking sessions

Adjacent: a general technology coworking group whose topics include cybersecurity and hacking, not a security-focused meetup.

Quiet: last activity Jan 2026Free

Directory checklist

14 of 19 national directories list a local chapter
DirectoryResult
2600 MeetingsLocal chapter: NYC2600
CISA Regional OfficesNearest: CISA Region 2 (no public New York City events found)
Cloud Security AllianceNearest: CSA New York Metro Chapter (listed in the CSA directory; its page and Eventbrite list no dated events)
Cyversity (formerly ICMCP) ChaptersNearest: Cyversity NYC Metro Chapter (no dated events posted)
DEF CON GroupsLocal chapter: DC212 (DEF CON Group New York City)
HTCIALocal chapter: HTCIA New York Metro Chapter
IAPP KnowledgeNetLocal chapter: IAPP KnowledgeNet New York
InfraGard Members AlliancesLocal chapter: New York City Metro InfraGard Members Alliance
ISACALocal chapter: ISACA New York Metropolitan Chapter
ISC2Local chapter: ISC2 New York City & Long Island Chapter
ISSALocal chapter: ISSA New York Metro Chapter
NSA National Centers of Academic Excellence in Cybersecurity (NCAE-C)Local chapter: NYU OSIRIS Lab
OWASPLocal chapter: OWASP New York City Chapter
SANS InstituteNearest: SANS Baltimore 2027 (no SANS New York event is posted for 2026 or 2027)
SecureWorldLocal chapter: SecureWorld New York City
Security BSidesLocal chapter: BSidesNYC
TOOOL (The Open Organisation Of Lockpickers)Nearest: TOOOL Philadelphia (TOOOL NYC is not on the TOOOL meetings list and toool.nyc does not resolve)
WiCyS (Women in CyberSecurity) Professional AffiliatesLocal chapter: WiCyS NY Metro Affiliate
Women's Society of Cyberjutsu (WSC) ChaptersLocal chapter: Women's Society of Cyberjutsu NYC Chapter

Checked Nov 3, 2026

Dormant groups

2 groups with no public activity for 18 months or more

Field notes

Sources

Numbered references for the listings on this page.

  1. S1https://cucyber.cs.columbia.edu/
  2. S2https://infosecurity.nyc/
  3. S3https://infosecurity.nyc/about.htm
  4. S4https://www.meetup.com/defcon862/events/317081379/
  5. S5https://nyc2600.net/
  6. S6https://nyc2600.net/2026/09/30/nyc2600-meeting-october-2026/
  7. S7https://nyc2600.net/2026/11/03/nyc2600-meeting-november-2026/
  8. S8https://csaw.io/careers
  9. S9https://csaw.io/
  10. S10https://csaw.io/competition/capture-the-flag
  11. S11http://nysec.io/
  12. S12https://calendar.google.com/calendar/embed?src=tvrptkil8r120s1guaefhp23hs%40group.calendar.google.com&ctz=America%2FNew_York
  13. S13https://cyberriskalliance.swoogo.com/NewYork-Fall-2026
  14. S14https://defcon908.org/the-com-and-the-cybercrime-ecosystem/
  15. S15https://www.meetup.com/defcon862/events/317266306/
  16. S16https://bsidesphilly.org/
  17. S17https://cybersecuritysummit.com/summits/
  18. S18https://go.guidepointsecurity.com/GPSEC-NYC.html
  19. S19https://www.fordham.edu/gabelli-school-of-business/faculty/research-centers/center-for-professional-accounting-practices/news-and-events/future-events/the-international-conference-on-cyber-security/
  20. S20https://www.bsidesct.org/
  21. S21https://bsidesnyc.org/
  22. S22https://bsidesnyc.org/archive/
  23. S23https://ismg.events/summit/newyork-financial-service-2026/
  24. S24https://www.hope.net/
  25. S25https://events.govtech.com/New-York-City-Cybersecurity-Summit
  26. S26https://events.secureworld.io/details/new-york-ny-2026/
  27. S27https://www.summercon.org/
  28. S28https://iapp.org/community/iapp-chapters/new-york-ny
  29. S29https://www.orrick.com/en/Events/2026/02/IAPP-KnowledgeNet-Healthcare-AI-and-Privacy-Perspectives-2026
  30. S30https://engage.isaca.org/newyorkmetropolitanchapter/home
  31. S31https://engage.isaca.org/newyorkmetropolitanchapter/events/eventdescription?CalendarEventKey=2c5b407c-7edd-40fc-9e82-019b6cf731a7&CommunityKey=bf8a8e3e-101f-4880-a2db-69da2ff823cf&Home=%2Fnewyorkmetropolitanchapter%2Fevents%2Fcalendar&hlmlt=ED
  32. S32https://isc2chapter-liny.org/all-events/
  33. S33https://www.issa.nyc/
  34. S34https://2025.infosecurity.nyc/
  35. S35https://owasp.org/www-chapter-new-york-city/
  36. S36https://luma.com/owasp-new-york-city
  37. S37https://luma.com/orv89hgi
  38. S38https://www.meetup.com/owasp-new-york-city-chapter/
  39. S39https://dc212.nyc/
  40. S40https://www.meetup.com/defcon212/
  41. S41https://www.meetup.com/defcon862/
  42. S42https://www.meetup.com/defcon862/events/316163861/
  43. S43https://defcon908.org/
  44. S44https://www.meetup.com/hackmanhattan/
  45. S45https://www.meetup.com/hackmanhattan/events/316246653/
  46. S46https://www.meetup.com/hackmanhattan/events/316218987/
  47. S47https://luma.com/j2qicm35
  48. S48https://sites.google.com/wicys.org/wicysnymetro/
  49. S49https://www.wicys.org/event/wicys-ny-metro-affiliate-pride-in-cyber-securing-the-future-together/
  50. S50https://www.wicys.org/event/wicys-new-york-metro-affiliate-spring-into-cyber-leadership-innovation-impact/
  51. S51https://womenscyberjutsu.org/group/NYC
  52. S52https://womenscyberjutsu.org/events/EventDetails.aspx?id=2061724
  53. S53https://www.nym-infragard.us/
  54. S54https://www.isgbaruch.com/
  55. S55https://osiris.cyber.nyu.edu/
  56. S56https://events.secureworld.io/details/new-york-ny-2025/
  57. S57https://www.meetup.com/cloud-security-meetup-new-york/
  58. S58https://usergroups.security.googlecloudcommunity.com/new-york-city-user-group/
  59. S59https://www.meetup.com/queens-cybertech-meetup/
  60. S60https://www.htcia.org/ny-metro/
  61. S61https://members.htcia.org/events-calendar/details/htcia-new-york-metro-chapter-townhall-1059886
  62. S62https://www.meetup.com/new-york-cloud-native-security-meetup/