> irvine, ca · verified oct 23, 2026
California
Irvine hosts several of Orange County's regular security meetings: the Irvine Underground hacker night on the second Friday, monthly Wednesday evenings of the Cloud Security Alliance chapter, an ISSA OC chapter lunch on October 27, 2026, ISACA and OWASP chapter sessions, and the Cyber@UCI student club. A DEF CON group meets in Garden Grove and a 2600 social in Fullerton, and GuidePoint's GPSEC SoCal conference returns to Irvine on March 25, 2027.
Wed, Nov 4, 2026 · 6:00 p.m. to 7:00 p.m.
UC Irvine, Irvine (room not posted on the club's events page)
Beginner-level capture-the-flag session. Dates and Pacific times come from the club's calendar, which shows the year. The page does not state a room, a fee or who may attend; access follows the club being a UC Irvine student organization.
ConfirmedCTFStudents only
Thu, Nov 5, 2026
San Diego Marriott Mission Valley, San Diego · Regional
One-day hybrid conference run by an events company, with vendor sessions. The event page shows no price or access terms; paid is assumed.
ConfirmedConferencePaidVendor-hosted
Fri, Nov 6, 2026 · 7:00 p.m.
23b Hackerspace, 418 E. Commonwealth Ave, Unit 1, Fullerton · Metro area
Per published schedule; confirm with organizer.
MeetingFree
Sat, Nov 7, 2026 · 9:00 a.m. to 5:00 p.m.
UC Irvine, Irvine (room not posted on the club's events page)
Tryouts for the CCDC team. Dates and Pacific times come from the club's calendar, which shows the year. The page does not state a room, a fee or who may attend; access follows the club being a UC Irvine student organization.
ConfirmedCTFStudents only
Mon, Nov 9 to Tue, Nov 10, 2026
Hotel Fera Anaheim, Anaheim · Metro area
Security event for MSPs, MSSPs and IT channel partners; the page says 100% free for qualified channel partners, so the free access is limited to that group.
ConfirmedConferenceFreeVetting requiredVendor-hosted
Wed, Nov 11, 2026 · 6:00 p.m. to 7:00 p.m.
UC Irvine, Irvine (room not posted on the club's events page)
Guest talk by a speaker from NASA's Jet Propulsion Laboratory. Dates and Pacific times come from the club's calendar, which shows the year. The page does not state a room, a fee or who may attend; access follows the club being a UC Irvine student organization.
ConfirmedMeetupStudents only
Thu, Nov 12, 2026 · 8:00 a.m.
Hilton Long Beach, Long Beach · Metro area
Run by Government Technology (e.Republic) for state and local government staff. The page states 'Open to Public Sector only. Registration - Free'.
ConfirmedSummitFreeVetting requiredVendor-hosted
Fri, Nov 13, 2026 · 7:00 p.m.
Blue Hummingbird Coffee and Kitchen, 1 Park Plaza, Suite 165, Irvine (subject to change)
Per published schedule; confirm with organizer.
MeetingFree
Fri, Nov 13, 2026 · 8:00 a.m. to 6:00 p.m.
Marriott Marquis San Diego Marina, San Diego · Regional
Community conference run by a 501(c)(3) with two tracks, a hands-on workshop and up to 9 CPE; the WSC SoCal chapter is a community partner. The site says ticket prices were lowered but shows no amount; Luma says registration is a non-refundable donation and that 50% chapter discount codes expired 2026-10-21.
ConfirmedConferencePaid
Mon, Nov 16, 2026 · 6:00 p.m. to 8:00 p.m.
The Bruery Tasting Room, Placentia · Metro area
Happy hour for cybercrime, DFIR, security, legal and public-safety professionals, presented by SoCalSec with the HTCIA chapter. No presentations or sales pitches. Free Luma registration is required; the page states no fee.
ConfirmedMeetupFree
Wed, Nov 18, 2026 · 6:00 p.m. to 7:00 p.m.
UC Irvine, Irvine (room not posted on the club's events page)
Beginner-level workshop. Dates and Pacific times come from the club's calendar, which shows the year. The page does not state a room, a fee or who may attend; access follows the club being a UC Irvine student organization.
ConfirmedWorkshopStudents only
Wed, Nov 25, 2026 · 6:00 p.m. to 7:00 p.m.
UC Irvine, Irvine (room not posted on the club's events page)
Club social. Dates and Pacific times come from the club's calendar, which shows the year. The page does not state a room, a fee or who may attend; access follows the club being a UC Irvine student organization.
ConfirmedMeetupStudents only
Wed, Dec 2, 2026 · 6:00 p.m. to 7:00 p.m.
UC Irvine, Irvine (room not posted on the club's events page)
End-of-quarter showcase of the club's work. Dates and Pacific times come from the club's calendar, which shows the year. The page does not state a room, a fee or who may attend; access follows the club being a UC Irvine student organization.
ConfirmedMeetupStudents only
Fri, Dec 4, 2026 · 7:00 p.m.
23b Hackerspace, 418 E. Commonwealth Ave, Unit 1, Fullerton · Metro area
Per published schedule; confirm with organizer.
MeetingFree
Thu, Dec 10, 2026 · 8:00 a.m. to 6:00 p.m. (from the registration page's UTC times)
Los Angeles (venue not read) · Regional
Run by ISC2; open to members and non-members, 3.75 CPE, with optional add-on workshops. The pages read show neither the venue nor the price; paid is assumed.
ConfirmedConferencePaid
Fri, Dec 11, 2026 · 7:00 p.m.
Blue Hummingbird Coffee and Kitchen, 1 Park Plaza, Suite 165, Irvine (subject to change)
Per published schedule; confirm with organizer.
MeetingFree
Mon, Dec 14, 2026 · 6:00 p.m. to 8:00 p.m.
Raymond Ave Brewing Company, Anaheim · Metro area
Happy hour for cybercrime, DFIR, security, legal and public-safety professionals, presented by SoCalSec with the HTCIA chapter. No presentations or sales pitches. Free Luma registration is required; the page states no fee.
ConfirmedMeetupFree
Fri, Jan 1, 2027 · 7:00 p.m.
23b Hackerspace, 418 E. Commonwealth Ave, Unit 1, Fullerton · Metro area
Per published schedule; confirm with organizer.
MeetingFree
Fri, Jan 8, 2027 · 7:00 p.m.
Blue Hummingbird Coffee and Kitchen, 1 Park Plaza, Suite 165, Irvine (subject to change)
Per published schedule; confirm with organizer.
MeetingFree
Fri, Feb 5, 2027 · 7:00 p.m.
23b Hackerspace, 418 E. Commonwealth Ave, Unit 1, Fullerton · Metro area
Per published schedule; confirm with organizer.
MeetingFree
Fri, Feb 12, 2027 · 7:00 p.m.
Blue Hummingbird Coffee and Kitchen, 1 Park Plaza, Suite 165, Irvine (subject to change)
Per published schedule; confirm with organizer.
MeetingFree
Wed, Mar 3, 2027
Orange County, CA (venue not posted) · Metro area
The organizer schedule lists Planet Cyber Sec AI - Conference, Orange County, CA on March 3, 2027 without a venue, time or price; paid is assumed. Run by Layer 8 Masters; the 2026 edition was at the Hilton Orange County, Costa Mesa.
ConfirmedConferencePaidVendor-hosted
Fri, Mar 5, 2027 · 7:00 p.m.
23b Hackerspace, 418 E. Commonwealth Ave, Unit 1, Fullerton · Metro area
Per published schedule; confirm with organizer.
MeetingFree
Fri, Mar 12, 2027 · 7:00 p.m.
Blue Hummingbird Coffee and Kitchen, 1 Park Plaza, Suite 165, Irvine (subject to change)
Per published schedule; confirm with organizer.
MeetingFree
Thu, Mar 25, 2027 · 8:00 a.m. to 5:00 p.m.
[AV] Irvine, 16500 Scientific, Irvine
One-day conference run by GuidePoint Security with vendor sessions. The registration page is a Request to Register form reviewed by the organizer and says non-sponsoring partners, recruiters and competitors may not attend; no fee is stated. The venue is given as '[AV] Irvine, 16500 Scientific'.
ConfirmedConferenceVetting requiredVendor-hosted
Wed, Mar 31, 2027
Hilton Los Angeles Culver City, Culver City · Regional
One-day hybrid conference run by an events company. The event page shows no price or access terms; paid is assumed.
ConfirmedConferencePaidVendor-hosted
Fri, Apr 2, 2027 · 7:00 p.m.
23b Hackerspace, 418 E. Commonwealth Ave, Unit 1, Fullerton · Metro area
Per published schedule; confirm with organizer.
MeetingFree
Fri, Apr 9, 2027 · 7:00 p.m.
Blue Hummingbird Coffee and Kitchen, 1 Park Plaza, Suite 165, Irvine (subject to change)
Per published schedule; confirm with organizer.
MeetingFree
Mon, May 10 to Sat, May 15, 2027
Hilton San Diego Bayfront, San Diego · Regional
Commercial training run by the SANS Institute at the Hilton San Diego Bayfront, in person or live online (Pacific time). Price not read.
ConfirmedTrainingPaidVendor-hosted
Wed, Jun 9, 2027
Los Angeles, CA (venue not posted) · Regional
The organizer schedule lists the AppSec conference in Los Angeles on June 9, 2027 without a venue, time or price; paid is assumed. Run by Layer 8 Masters.
ConfirmedConferencePaidVendor-hosted
Wed, Jul 28, 2027
Embassy Suites by Hilton Anaheim-South, Garden Grove · Metro area
One-day hybrid conference run by an events company; the 2026 edition was at the same hotel on 2026-07-23. The event page shows no price or access terms; paid is assumed.
ConfirmedConferencePaidVendor-hosted
Mon, Aug 16 to Wed, Aug 18, 2027
Disneyland Resort, Anaheim · Metro area
22nd summit for utility cybersecurity and compliance professionals. The page shows no price or eligibility terms; paid is assumed. A call for contributors is open.
ConfirmedSummitPaid
Announced without a date, or expected from past editions. Not confirmed.
Announced by the organizer; date not yet published.
Sheraton Park Hotel at the Anaheim Resort, 1855 S. Harbor Blvd, Anaheim · Metro area
Date TBAConferencePaidVendor-hosted
Held on June 2 in 2026; 2027 date not yet announced
Tustin Ranch Golf Club, Tustin (2026 venue) · Metro area
ExpectedSummitPaid
Usually held in late May; 2027 dates not yet announced
Pasadena Hilton, Pasadena (2026 venue) · Regional
ExpectedConferencePaid
Last held on October 18, 2025; no later edition announced
Cal State Fullerton, Fullerton (2025 venue) · Metro area
ExpectedConferenceFree
Held on September 10 in 2026; 2027 date not yet announced
Marriott Marquis San Diego Marina, San Diego (2026 venue) · Regional
ExpectedSummitPaidVetting requiredVendor-hosted
5271 California Ave, Suite 100, Irvine · In the city
Monthly Wednesday evening meetings at 5:30 p.m., usually late in the month
Many meetings are sponsored by a vendor and include a product talk or hands-on workshop. The October 28, 2026 meeting is described by the organizer as the last monthly meeting of the year; RSVP is required and the Meetup page states no price.
Free
meetup.com/cloud-security-alliance-csa-orange-c… [S31] [S32]
Southern California; joins Orange County socials · Metro area
Irregular; joint socials with ISSA OC and others
High Technology Cyber Investigation Association (digital forensics and cyber investigations). SoCalSec happy hours are presented with the chapter and posted on Luma; the next two are listed as events. last_activity is the SoCalSec social at Golden Road Brewing, Anaheim, on 2026-09-21, read on the HTCIA calendar on 2026-09-27; that site returned HTTP 403 on 2026-10-23 and could not be read again, so a later social cannot be confirmed. Chapter meetings are listed as members-only.
Members only
Orange County · Metro area
Occasional in-person happy hours and virtual KnowledgeNet sessions
Privacy-focused; KnowledgeNets are free for IAPP members. The chapter page opened on 2026-10-23 lists no scheduled meetings. The last_activity date (the in-person SoCal Chapters Summer Happy Hour, August 12, 2026) comes from a search listing of the chapter page and could not be confirmed on any page that could be read.
Members only
Irvine (Ingram Micro, RSM) and other Orange County venues · In the city
Monthly events (virtual lunch talks and in-person workshops), certification review courses and an annual GRC summit
The latest event is the joint Beyond Boundaries: Future of GRC conference with IIA OC on 2026-10-15 in Fountain Valley (8 CPE; the chapter marks it past). Most 2026 in-person sessions were in Irvine (Ingram Micro on 2026-02-25 and 2026-04-14; RSM on 2026-09-02); summits were in Tustin and Fountain Valley. The events page lists no scheduled event. isacaoc.com is a beta site; its events link to Cvent registration. The chapter's engage.isaca.org calendar shows one event on hold and no scheduled events; nothing on hold is recorded. Member prices are lower.
Paid
Orange County; 2026 socials in Anaheim, Placentia, Pomona and Long Beach; chapter lunch in Irvine · Metro area
Roughly monthly evening security socials (6:00 to 8:00 p.m.) at rotating breweries, plus occasional roundtables
Socials invite guests; membership is paid. Recent events: Security Social on 2026-09-21 (Golden Road Brewing, Anaheim) and the Cyber Industry Career Night on 2026-09-24 at Fullerton College. The 2026-05-08 roundtable was in Costa Mesa. The only future event posted is the chapter lunch meeting on 2026-10-27 in Irvine.
Free
Irvine (venues vary) · In the city
Evening meetings, often a Thursday, 6:00 to 8:00 p.m.; some are joint with CSA Orange County
The chapter page says meetings are posted on Eventbrite (2026 meetings on January 29 and February 26). The latest meeting found is the joint CSA and OWASP meeting on 2026-06-24 at 5271 California Ave, Irvine. The chapter's Meetup, OWASP and Eventbrite pages list no later meeting.
Free
Coastline College Garden Grove Center, 12901 S. Euclid St., Room 251, Garden Grove · Metro area
Second Wednesday of the month, 6:00 to 8:00 p.m., except January and August
Beginner-friendly. The speakers page marks the 2026-06-10 talk as a recap and shows the 2026-09-09 DEF CON recap with a not-yet-held tag rather than as held, so last_activity is 2026-06-10. The home page states the second-Wednesday rule (not January or August), 6:00 to 8:00 p.m., Room 251.
Free
Blue Hummingbird Coffee and Kitchen, 1 Park Plaza, Suite 165, Irvine (subject to change) · In the city
Second Friday of the month, 7:00 p.m.
Hackers, sysadmins, security people and programmers; open to everyone. Gulliver's Restaurant, the long-time venue, closed; meetings moved to Blue Hummingbird and the site says the location may change month to month. The site's minutes list ends at the September 18, 2026 meeting (held on the third Friday), so whether an October 9 meeting took place is not confirmed. The site and Meetup list the next meeting as November 13, 2026; Meetup shows the venue for November and December as TBD.
Free
23b Hackerspace, 418 E. Commonwealth Ave, Unit 1, Fullerton · Metro area
First Friday of the month, 7:00 p.m.
Open to all ages and skill levels. Meetup lists the first-Friday meetings on 2026-11-06, 2026-12-04, 2027-01-01 and 2027-02-05. Past-event pages show no dates, so whether the 2026-10-02 meeting took place is not confirmed.
Free
Los Angeles and Long Beach (workshops rotate) · Metro area
Roughly monthly workshops, in person or online
In-person workshops in 2026 were in Beverly Hills and at Long Beach City College; the August and September 2026 sessions were online. A DevSecOps workshop was scheduled for 2026-10-03 at Long Beach City College and on Zoom; no record that it took place could be read. The chapter is a community partner of San Diego CyberCon on 2026-11-13.
Free
Coastline College Garden Grove Center, 12901 S. Euclid St., Garden Grove · Metro area
Club competitions during the school year; free community symposia and mixers a few times a year
Coastline College is an NSA CAE school. The Xploit Club is for Coastline students; STORM symposia and mixers are open to the community. last_activity is the NCyTE x STORM Community Connector (May 13, 2026), read on 2026-09-27. stormcyber.org returned HTTP 403 on 2026-10-23, so the STORM Cyber & AI Research Symposium scheduled for 2026-10-03 could not be checked and no later activity is recorded. DC714 meets at the same Garden Grove center.
Free
UC Irvine, Irvine · In the city
During the academic year: Wednesday evening workshops (6:00 to 7:00 p.m.), CCDC team training on Mondays and Thursdays (7:10 to 8:30 p.m., ISEB 1310) and Saturday competitions
UC Irvine's cybersecurity club and competition teams (CCDC, CPTC, CTFs). Fall 2026 events are listed separately; the twice-weekly CCDC training sessions are not. last_activity is the Password Cracking workshop dated 2026-10-21 on the club's own calendar, which is the only evidence it took place (the previous held event with outside coverage is the Information Technology Competition on 2026-04-19). The calendar shows the year and Pacific time. The HackerLab (ISEB 1550) is described as open to anyone; the events page states no fee or attendance terms.
Students only
Fullerton College, 321 E. Chapman Ave, Fullerton · Metro area
Occasional public events (Cybersecurity Awareness Fair in October, career night)
Fullerton College is an NSA CAE school. It hosted the Cyber Industry Career Night on 2026-09-24 with ISACA OC, ISSA OC, ASIS OC and HTCIA SoCal. The center's events page lists no scheduled events.
Free
Cal State Fullerton, Fullerton · Metro area
Workshops and competition teams during the academic year; schedule on the club calendar
Non-CSUF students may attend workshops. The public calendar feed has no dated entry after 2026-02-28; a weekly series on it ends 2026-10-24.
Quiet: last activity Feb 2026Free
418 E. Commonwealth Ave, Fullerton · Metro area
Shopluck open house on third Saturdays at 7:00 p.m. (per the shop's website); weekly online Digital Hacker Happy Hour on Thursday evenings (Meetup)
Adjacent: a general hackerspace (electronics, machining, computers) rather than a security group. It hosts the OC2600 first-Friday meetings; last_activity is the 2026-09-04 meeting there. No later in-person date could be confirmed.
Free
| Directory | Result |
|---|---|
| 2600 Meetings | Local chapter: OC2600 |
| CISA Regional Offices | Nearest: CISA Region 9; no public Orange County events posted |
| Cloud Security Alliance | Local chapter: Cloud Security Alliance (CSA) Orange County |
| Cyversity (formerly ICMCP) Chapters | Nearest: Cyversity Southern California Chapter (no dated activity found) |
| DEF CON Groups | Local chapter: DC714 (DEF CON Group Orange County) |
| HTCIA | Local chapter: HTCIA Southern California Chapter |
| IAPP KnowledgeNet | Local chapter: IAPP KnowledgeNet Orange County |
| InfraGard Members Alliances | Nearest: InfraGard Los Angeles Members Alliance |
| ISACA | Local chapter: ISACA Orange County Chapter |
| ISC2 | Nearest: ISC2 Los Angeles Chapter |
| ISSA | Local chapter: ISSA Orange County |
| NSA National Centers of Academic Excellence in Cybersecurity (NCAE-C) | Local chapter: Coastline College STORM Cyber Center and Xploit Club |
| OWASP | Local chapter: OWASP Orange County |
| SANS Institute | Nearest: SANS Security West 2027 (San Diego, May 10 to 15, 2027; listed under events) |
| SecureWorld | No chapter found |
| Security BSides | Nearest: BSides San Diego |
| TOOOL (The Open Organisation Of Lockpickers) | No chapter found |
| WiCyS (Women in CyberSecurity) Professional Affiliates | Nearest: WiCyS Los Angeles |
| Women's Society of Cyberjutsu (WSC) Chapters | Local chapter: Women's Society of Cyberjutsu SoCal |
Numbered references for the listings on this page.