OWASP Global AppSec USA 2026
Mon, Nov 2 to Fri, Nov 6, 2026 · Training November 2 to 4; conference November 5 to 6
Hyatt Regency San Francisco, San Francisco · Regional
The OWASP Foundation's largest US conference.
ConfirmedConferencePaid
California
Stockton, CA cybersecurity events & groups
Stockton has no professional security chapter of its own. The security community nearby is DC209, a DEF CON group that meets in Turlock, with a general-computing club at Modesto Junior College and the Google Developer Group chapters in Stockton and Modesto. The ISACA, ISSA, ISC2 and InfraGard chapters meet in Sacramento, about 50 miles north, and the largest conferences are in the Bay Area.
Start here
- DC209 (DEF CON Group 209): The only dedicated hacker group in the area; free and open to all levels, with meeting notices on its Discord.
- ISC2 East Bay Fall Conference 2026: Do I Know You? Identity in the Age of AI: The nearest community-run security conference in the window, in Livermore, with student pricing.
- Google Developer Group (GDG) Stockton: A free Stockton developer community that meets in person and online, useful for local tech networking.
Six months at a glance
Datebook
November 2026
SANS San Francisco 2026
Mon, Nov 2 to Sat, Nov 7, 2026
Hilton San Francisco Financial District, 750 Kearny St, San Francisco · Regional
Paid multi-day SANS courses, in person and online.
ConfirmedTrainingPaidVendor-hosted
Modesto Junior College Computer and Information Science Club
Thu, Nov 5, 2026 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
Modesto Junior College Computer and Information Science Club
Thu, Nov 12, 2026 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
ISC2 East Bay Fall Conference 2026: Do I Know You? Identity in the Age of AI
Fri, Nov 13, 2026 · 8:00 a.m. to 5:00 p.m.
Las Positas College, Building 2400, Livermore · Regional
Run by the ISC2 East Bay Chapter, a nonprofit; sponsors fund it. Tickets run from $100 to $170 on the organizer page, with student pricing; up to 13 CPEs.
ConfirmedConferencePaid
Modesto Junior College Computer and Information Science Club
Thu, Nov 19, 2026 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
Modesto Junior College Computer and Information Science Club
Thu, Nov 26, 2026 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
December 2026
Modesto Junior College Computer and Information Science Club
Thu, Dec 3, 2026 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
Modesto Junior College Computer and Information Science Club
Thu, Dec 10, 2026 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
Modesto Junior College Computer and Information Science Club
Thu, Dec 17, 2026 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
Modesto Junior College Computer and Information Science Club
Thu, Dec 24, 2026 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
Modesto Junior College Computer and Information Science Club
Thu, Dec 31, 2026 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
January 2027
Modesto Junior College Computer and Information Science Club
Thu, Jan 7, 2027 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
Modesto Junior College Computer and Information Science Club
Thu, Jan 14, 2027 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
Modesto Junior College Computer and Information Science Club
Thu, Jan 21, 2027 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
Modesto Junior College Computer and Information Science Club
Thu, Jan 28, 2027 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
February 2027
Modesto Junior College Computer and Information Science Club
Thu, Feb 4, 2027 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
Modesto Junior College Computer and Information Science Club
Thu, Feb 11, 2027 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
Modesto Junior College Computer and Information Science Club
Thu, Feb 18, 2027 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
Modesto Junior College Computer and Information Science Club
Thu, Feb 25, 2027 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
March 2027
Modesto Junior College Computer and Information Science Club
Thu, Mar 4, 2027 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
Modesto Junior College Computer and Information Science Club
Thu, Mar 11, 2027 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
Modesto Junior College Computer and Information Science Club
Thu, Mar 18, 2027 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
Modesto Junior College Computer and Information Science Club
Thu, Mar 25, 2027 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
April 2027
Modesto Junior College Computer and Information Science Club
Thu, Apr 1, 2027 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
RSAC 2027 Conference
Mon, Apr 5 to Thu, Apr 8, 2027
Moscone Center, 747 Howard St, San Francisco · Regional
Run by RSA Conference LLC. The dates come from the organizer's press release and the Moscone Center calendar; rsaconference.com refused automated access.
ConfirmedConferencePaidVendor-hosted
Modesto Junior College Computer and Information Science Club
Thu, Apr 8, 2027 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
Modesto Junior College Computer and Information Science Club
Thu, Apr 15, 2027 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
Modesto Junior College Computer and Information Science Club
Thu, Apr 22, 2027 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
Modesto Junior College Computer and Information Science Club
Thu, Apr 29, 2027 · 5:00 p.m.
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
September 2027
CSJVCC Summit: Preparing for Cybersecurity Month (2027)
Wed, Sep 22, 2027
Fresno area (venue not yet announced) · Regional
Run by the Central San Joaquin Valley Cybersecurity Consortium, a nonprofit project serving Fresno-area schools and businesses, about two hours south. No fee is stated; registration is required.
ConfirmedSummitFree
On the radar
Announced without a date, or expected from past editions. Not confirmed.
ISC2 East Bay Winter Conference 2027
Announced by the organizer; date not yet published.
Livermore (2026 conferences at Las Positas College) · Regional
Date TBAConferencePaid
BSidesSF 2027
Usually held over a weekend in March (the 2026 edition ran March 21 and 22); 2027 dates not yet announced
San Francisco · Regional
ExpectedConferencePaid
ISACA Sacramento Flagship Conference 2027
Usually held in mid-September (the 2026 conference ran September 17 and 18); 2027 dates not yet announced
Sacramento (2026 edition at Wyndham Sacramento) · Regional
ExpectedConferencePaid
Groups & associations
Hacker and grassroots groups
DC209 (DEF CON Group 209)
Pizza Factory, 1865 Countryside Dr, Turlock · Metro area
Most months on the third Wednesday, 6:00 p.m., at Pizza Factory in Turlock; confirm each meeting on the group's Discord
DEF CON group for the 209 area code (Modesto, Turlock, Stockton), about 45 miles south of Stockton. Its site says it meets most months on the third Wednesday at Pizza Factory in Turlock. The last dated meeting found is May 21, 2025; it announced meetings through August 20, 2025 on X and now posts updates on Discord, which could not be read.
Quiet: last activity May 2025Free
Education and student groups
Modesto Junior College Computer and Information Science Club
MJC East Campus, Center for Advanced Technologies, Room 229, Modesto · Metro area
Thursdays, 5:00 to 6:00 p.m., September 10, 2026 to April 15, 2027
General computing club for MJC students in Modesto, about 30 miles south of Stockton; the college lists cybersecurity among its topics alongside programming, information systems and data science.
Students only
Adjacent communities
Google Developer Group (GDG) Stockton
Stockton (venues vary; some meetings online) · In the city
Irregular; a virtual reading club and occasional workshops, posted on the chapter page
Adjacent: a general developer community, not a security group. Its last dated event was the July 30, 2026 virtual reading club (free registration). It co-hosts DevFest Central Valley with GDG Modesto.
Free
Directory checklist
1 of 19 national directories list a local chapter
Field notes
- DC209's last dated meeting found is May 21, 2025. Its website says it meets most months on the third Wednesday at Pizza Factory in Turlock, while the DEF CON forum listing says the last Wednesday; the organizer's site is used here. Meeting notices now go out on its Discord, so confirm there before driving.
- No ISSA, ISACA, ISC2, OWASP, WiCyS or InfraGard chapter meets in Stockton. The nearest meet in Sacramento (about 50 miles north) or the Bay Area. ISC2 East Bay holds its monthly meetings on Zoom.
- The University of the Pacific lists a Cybersecurity Club supported by ISACA, with weekly meetings, but no dated meeting or event could be found, so it is not listed as a group.
- The San Joaquin County Office of Education has run an annual cybersecurity symposium, but its only readable trace was a Facebook post that could not be opened, so it is not listed.
- The Modesto Junior College club is for enrolled MJC students and covers general computing as well as security.
- DevFest Central Valley is a general developer conference. It is listed because it is the area's main tech community event, not because it has security content.
- The California Cybersecurity Education Summit in Sacramento on October 8, 2026 is open to public sector staff only, and the InfraGard symposium on October 14, 2026 is for InfraGard members and their colleagues.
Sources
Numbered references for the listings on this page.
- S1https://owasp.glueup.com/event/owasp-global-appsec-usa-2026-167174/
- S2https://www.sans.org/cyber-security-training-events/san-francisco-2026
- S3https://www.mjc.edu/campuslife/clubs.html
- S4https://isc2-eastbay-chapter.org/events/isc2-east-bay-fall-conference-2026/
- S5https://dc209.org/
- S6https://x.com/defcon209
- S7https://forum.defcon.org/node/231786
- S8https://www.prnewswire.com/news-releases/rsac-conference-closes-35th-annual-flagship-event-backed-by-the-power-of-community-302726865.html
- S9https://www.moscone.com/events/rsac-2027-conference
- S10https://www.csjvcc.org/
- S11https://bsidessf.org/
- S12https://engage.isaca.org/sacramentochapter/home
- S13https://www.eventbrite.com/e/isaca-sacramento-flagship-conference-cybersecurity-ai-risk-leadership-tickets-1999860180635
- S14https://gdg.community.dev/gdg-stockton/
- S15https://gdg.community.dev/events/details/google-gdg-stockton-presents-july-virtual-reading-club-ai-chatbots-and-mental-health/