California
San Jose, CA cybersecurity events & groups
San Jose has a monthly ISSA Silicon Valley chapter meeting, a downtown 2600 meeting on the first Friday, WiCyS Silicon Valley evenings, and a student cybersecurity club at San Jose State. Nearby, ISC2 Silicon Valley meets in Santa Clara, DC408 in Campbell and OWASP Bay Area in rotating Peninsula and East Bay cities. The Silicon Valley Cybersecurity Conference (June 2027) and Cyber Security Congress North America (June 2027) are held in San Jose, and San Francisco hosts the large conferences.
Start here
- ISSA Silicon Valley Chapter: Free monthly evening meeting in San Jose that welcomes guests; the October 20, 2026 session is a joint ISSA and WiCyS event.
- DC408 (DEF CON Group San Jose): Informal hacker social on the third Thursday of each month in Campbell, open to anyone.
- San Jose 2600: Free first-Friday meetup outside the downtown San Jose library.
Six months at a glance
Datebook
October 2026
ISSA Silicon Valley and WiCyS: AI on the Hunt, Using Claude to Unmask the hackerbot_claw Attack Campaign
Tue, Oct 20, 2026 · 5:30 to 8:00 p.m. (networking from 5:30, talk from 6:15)
Hewlett Packard Enterprise, 6280 America Center Dr, San Jose
Joint meeting with WiCyS; free registration on Luma. A virtual option opens at 5:55 p.m.
ConfirmedChapter meetingFree
WiCyS Silicon Valley: Zero Trust for AI, Securing Models, Data, and Autonomous Agents
Thu, Oct 22, 2026 · 5:00 to 7:00 p.m.
Cloudflare, 101 Townsend St, San Francisco · Metro area
Hosted at Cloudflare's San Francisco office; free registration on Luma.
ConfirmedMeetupFree
[un]prompted II: The AI Security Practitioner Conference
Tue, Oct 27 to Thu, Oct 29, 2026
San Francisco (venue not published on the conference site) · Regional
A volunteer-run AI security conference, the second edition after March 2026. In-person and online tickets are sold; an unofficial opening reception is listed for October 26, 2026.
ConfirmedConferencePaid
IAPP KnowledgeNet: Top 10 Trends in Cybersecurity Law
Thu, Oct 29, 2026
Silicon Valley (location given to registrants) · Metro area
Listed on the IAPP Silicon Valley chapter page as an in-person meeting on 29 Oct. 2026; the page shows no time or address, and the registration page did not load without a script. IAPP says only IAPP members can join KnowledgeNet chapters.
ConfirmedChapter meetingMembers only
November 2026
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 · Regional
The OWASP Foundation's main US conference.
ConfirmedConferencePaid
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
San Francisco 2600
Fri, Nov 6, 2026 · 6:00 p.m.
4 Embarcadero Center, ground level by the information kiosk, San Francisco · Metro area
Per published schedule; confirm with organizer.
MeetingFree
San Jose 2600
Fri, Nov 6, 2026 · 6:00 p.m.
Outside the Dr. Martin Luther King Jr. Library, downtown San Jose
Per published schedule; confirm with organizer.
MeetingFree
ThreatModCon San Francisco 2026
Fri, Nov 6 to Sat, Nov 7, 2026 · Welcome reception 6:00 p.m. on November 6; conference 8:00 a.m. to 5:00 p.m. on November 7
Hyatt Regency Embarcadero, San Francisco · Regional
A small threat modeling conference (under 120 seats) held right after OWASP Global AppSec USA. Run by the Threat Modeling Connect community, whose site belongs to the vendor IriusRisk. Early-bird pricing runs through mid-October, with no exact date given.
ConfirmedConferencePaidVendor-hosted
ISC2 East Bay Fall Conference: 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
Early-bird pricing ends: Sat, Oct 31, 2026
Early-bird tickets are $100 for chapter members, $145 for non-members and $45 for full-time students; prices rise after October 31, 2026. Las Positas students and staff may attend free from 1:00 p.m.
ConfirmedConferencePaid
December 2026
San Francisco 2600
Fri, Dec 4, 2026 · 6:00 p.m.
4 Embarcadero Center, ground level by the information kiosk, San Francisco · Metro area
Per published schedule; confirm with organizer.
MeetingFree
San Jose 2600
Fri, Dec 4, 2026 · 6:00 p.m.
Outside the Dr. Martin Luther King Jr. Library, downtown San Jose
Per published schedule; confirm with organizer.
MeetingFree
January 2027
San Francisco 2600
Fri, Jan 1, 2027 · 6:00 p.m.
4 Embarcadero Center, ground level by the information kiosk, San Francisco · Metro area
Per published schedule; confirm with organizer.
MeetingFree
San Jose 2600
Fri, Jan 1, 2027 · 6:00 p.m.
Outside the Dr. Martin Luther King Jr. Library, downtown San Jose
Per published schedule; confirm with organizer.
MeetingFree
February 2027
San Francisco 2600
Fri, Feb 5, 2027 · 6:00 p.m.
4 Embarcadero Center, ground level by the information kiosk, San Francisco · Metro area
Per published schedule; confirm with organizer.
MeetingFree
San Jose 2600
Fri, Feb 5, 2027 · 6:00 p.m.
Outside the Dr. Martin Luther King Jr. Library, downtown San Jose
Per published schedule; confirm with organizer.
MeetingFree
March 2027
San Francisco 2600
Fri, Mar 5, 2027 · 6:00 p.m.
4 Embarcadero Center, ground level by the information kiosk, San Francisco · Metro area
Per published schedule; confirm with organizer.
MeetingFree
San Jose 2600
Fri, Mar 5, 2027 · 6:00 p.m.
Outside the Dr. Martin Luther King Jr. Library, downtown San Jose
Per published schedule; confirm with organizer.
MeetingFree
April 2027
San Francisco 2600
Fri, Apr 2, 2027 · 6:00 p.m.
4 Embarcadero Center, ground level by the information kiosk, San Francisco · Metro area
Per published schedule; confirm with organizer.
MeetingFree
San Jose 2600
Fri, Apr 2, 2027 · 6:00 p.m.
Outside the Dr. Martin Luther King Jr. Library, downtown San Jose
Per published schedule; confirm with organizer.
MeetingFree
RSAC 2027 Conference
Mon, Apr 5 to Thu, Apr 8, 2027
Moscone Center, 747 Howard St, San Francisco · Regional
The organizer's March 2026 press release and Moscone Center's event calendar both give April 5 to 8, 2027. The organizer's sites (rsaconference.com and onersac.com) refused automated access.
ConfirmedConferencePaidVendor-hosted
June 2027
Cyber Security Congress North America 2027 (TechEx North America)
Wed, Jun 16 to Thu, Jun 17, 2027
San Jose McEnery Convention Center, San Jose
A vendor-run trade show and conference. The organizer's page lists a free pass for some visitors and a $499 Full Access Gold Pass; check who qualifies for a free pass before registering. A third-party listing gives May 2027 dates; the organizer's June 16 to 17, 2027 dates are used here.
ConfirmedConferenceFreePaidVendor-hosted
Silicon Valley Cybersecurity Conference (SVCC 2027)
Mon, Jun 21 to Wed, Jun 23, 2027
Northeastern University Silicon Valley Campus, San Jose
Author registration deadline (also the last day a refund can be approved): Thu, Apr 15, 2027
The eighth annual conference of the nonprofit Silicon Valley Cybersecurity Institute, with research papers, tutorials, workshops and industry talks. Registration opens in 2027 and prices are not posted yet; the site does not describe a free tier. The 2026 edition was held June 10 to 12, 2026 in San Jose.
ConfirmedConferencePaid
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
WiCyS Silicon Valley at Cisco Santana Row
Announced by the organizer; date not yet published.
Cisco Santana Row, San Jose
Date TBAMeetupFree
BSidesSF 2027
Usually held over a weekend in March; 2027 dates not yet announced
San Francisco (2026 edition at City View at Metreon) · Regional
ExpectedConferencePaid
HackTheBay 2027
Held during RSAC week (March 23, 2026); 2027 date not yet announced
San Francisco (2026 edition at Public Works SF) · Regional
ExpectedConferencePaid
ISACA Silicon Valley Annual Conference 2027
Held August 27 to 28 in 2026; 2027 dates not yet announced
Santa Clara (2026 edition at the Santa Clara Convention Center) · Metro area
ExpectedConferencePaid
Groups & associations
Professional associations
IAPP KnowledgeNet San Francisco Bay Area
San Francisco (location given to registrants) and online · Metro area
Periodic KnowledgeNet meetings, in person and virtual
Only IAPP members can join. The chapter page as archived April 15, 2026 listed a virtual meeting on April 21, 2026 and the joint in-person workshop on May 6, 2026.
Members only
iapp.org/community/iapp-chapters/san-francisco-… [S26] [S27]
IAPP KnowledgeNet Silicon Valley
Silicon Valley (location given to registrants) · Metro area
Periodic KnowledgeNet meetings on privacy and AI governance, often held jointly with the San Francisco Bay Area chapter
IAPP says only IAPP members can join KnowledgeNet chapters. The last activity date is the in-person "Lunch and CCPA Risk Assessment Workshop" on May 6, 2026, shown as sold out on the chapter page as archived April 15, 2026; no post confirms it took place.
Members only
ISACA San Francisco Chapter
San Francisco · Metro area
Spring and fall conferences plus occasional community events
The 2026 Spring Conference was held May 14, 2026 at KPMG's San Francisco office. The chapter's October 3, 2026 CommunITy Day at Ocean Beach is a volunteer event, not a security program.
Paid
ISACA Silicon Valley Chapter
Santa Clara, Pleasanton and online · Metro area
Monthly webinars and in-person events, plus an annual two-day conference in late August
The 2026 Annual Conference ("Trusted Autonomy: Governing the Agentic Future") was held August 27 to 28, 2026 at the Santa Clara Convention Center. The chapter's event list loads only in a browser; check it for monthly events.
Paid
ISC2 East Bay Chapter
East Bay; monthly meetings on Zoom, conferences at Las Positas College, Livermore · Metro area
Monthly member meetings on Zoom, usually a Thursday from 7:00 to 9:00 p.m.; in-person conferences a few times a year
The ISC2 chapter whose area covers the East Bay. Monthly member meetings are online webinars (registration required, 2 CPEs); the in-person events are the chapter's conferences, which charge admission.
Free
ISC2 San Francisco Chapter
San Francisco (Financial District) and online · Metro area
Irregular happy hours, joint networking events and online talks, announced on the chapter's LinkedIn page
The chapter's website calendar stops at a July 31, 2025 joint event, but it posts current events on LinkedIn: an online talk, "Who Is Qualified to Supervise an AI Agent?", on Thursday, September 10, 2026, and happy hours at Harlan Records in August and September 2026.
Free
ISC2 Silicon Valley Chapter
Santa Clara (host company varies), with a Zoom option · Metro area
Monthly chapter meetings from 6:00 to 8:00 p.m., usually on a Tuesday; no meetings in July and August in 2026
The September 8, 2026 meeting was hybrid at Palo Alto Networks headquarters in Santa Clara; the address is shown after free registration on Luma. The 2026 meetings fell on second Tuesdays, but the chapter does not publish a fixed rule.
Free
ISSA San Francisco Bay Area Chapter
San Francisco Bay Area; the 2026 meeting was online · Metro area
No regular schedule; one virtual meeting posted for 2026
The chapter held a virtual "revitalization" meeting for members and guests on April 8, 2026. No in-person meeting in 2026 was found. It has co-hosted evening events with the ISC2 San Francisco chapter, ISACA San Francisco and Cyversity Bay Area in the past.
Free
ISSA Silicon Valley Chapter
San Jose and Sunnyvale (host companies vary) · In the city
Monthly evening meetings, usually on a Tuesday at 5:30 p.m., in person with a virtual option
Meetings in 2026 fell on the third Tuesday of the month, but the chapter does not publish that as a fixed rule. Registration is through Luma; the October 2026 meeting is free. The December holiday party is for members and approved guests only.
Free
OWASP Bay Area Chapter
Rotates among Pleasanton, Palo Alto, San Mateo, Redwood City, Mountain View and San Francisco · Metro area
Monthly evening meetups from 5:00 to 8:00 p.m.; host company and city change each month
Check the city before going: the July and September 2026 meetups were in Pleasanton, others in San Mateo, Palo Alto and San Francisco; no San Jose venue was found in 2026. The September 30, 2026 meetup was held at Workday in Pleasanton. No October date was posted on October 8, 2026. The chapter has co-hosted meetups with CSA San Francisco and Pacific Hackers.
Free
Hacker and grassroots groups
DC341 (DEF CON Group Oakland)
Eli's Mile High Club or Cafe Van Kleef, Oakland · Metro area
Third Friday of the month (no start time published)
The site lists only the two bars and a third-Friday schedule, with no dated meetings. The last activity date is the most recent dated evidence found: an April 10, 2025 web archive capture of the site with the same schedule. Contact the group before going.
Quiet: last activity Apr 2025Free
DC408 (DEF CON Group San Jose)
Marufuku Ramen, Pruneyard Shopping Center, Campbell · Metro area
Third Thursday of the month, 7:30 p.m.; sometimes moved to another Thursday when the San Jose Sharks play at home
The group moved after DEF CON 34 (August 2026) from its downtown San Jose spot to Marufuku Ramen in Campbell, according to its July 23, 2026 forum post. The last activity date is the August 20, 2026 meeting it announced on the DEF CON forum on August 14; no post confirms it took place. Last-minute changes go out on the group's Discord.
Free
DC510 (DEF CON Group East Bay)
Near the Ashby BART station, Berkeley (exact spot shared by message) · Metro area
Usually a Sunday at 11:00 a.m., on or near the Sunday next to the second Monday of the month; rain delays are common
The group posts meeting dates on Bluesky, where it announced on June 7, 2026 that the meeting was being held that day and announced a July 12, 2026 meeting. Its website still showed the July 2026 meeting when checked in September. Dates move for weather and holidays, so check Bluesky before going.
Free
Pacific Hackers Association
Palo Alto, Sunnyvale and San Francisco (venues vary) · Metro area
Meetups, CTF days and an annual conference; no fixed schedule
A nonprofit hacker community. Its pre-DEF CON CTF and barbecue ran June 26, 2026 in San Francisco and June 27, 2026 at Endor Labs in Palo Alto. It runs the Pacific Hackers Conference, held November 1, 2025 at Plug and Play Tech Center in Sunnyvale.
Free
San Francisco 2600
4 Embarcadero Center, ground level by the information kiosk, San Francisco · Metro area
First Friday of the month, 6:00 p.m.
Part of 2600 Magazine's monthly meeting network. The last activity date is the first Friday of September 2026, when the magazine's September list still named this meeting; no post confirms that a specific meeting took place.
Free
San Jose 2600
Outside the Dr. Martin Luther King Jr. Library, downtown San Jose · In the city
First Friday of the month, 6:00 p.m.
Part of 2600 Magazine's monthly meeting network. The last activity date is the first Friday of September 2026, when the magazine's list still named this meeting; no post confirms that a specific meeting took place.
Free
Silicon Valley Cybersecurity Meetup
Palo Alto and Sunnyvale (host companies vary), some online · Metro area
Evening technical talks every month or two at 6:00 p.m.
Talks cover application security, reverse engineering and offensive testing. The most recent was on April 2, 2026 at Straiker in Sunnyvale; no later date was posted when checked.
Quiet: last activity Apr 2026Free
Inclusion and career communities
Cyversity Bay Area Chapter
San Francisco Bay Area (meeting places not published) · Metro area
No published schedule; events are posted on Cyversity's member platform
Cyversity (formerly ICMCP) supports women, underrepresented communities and veterans in cybersecurity; membership is paid. The chapter page is current, but its event listings could not be read without logging in. The last activity date is the joint speaker event with ISC2, ISACA and ISSA San Francisco on July 31, 2025, from the ISC2 San Francisco calendar.
Quiet: last activity Jul 2025Paid
WiCyS Silicon Valley Affiliate
San Jose and San Francisco (host companies vary) · In the city
Evening talks and networking about once a month; dates posted on Luma
Open to women, men and allies. The last activity date is the May 19, 2026 session it co-hosted with ISSA Silicon Valley. Its Luma calendar lists a joint ISSA Silicon Valley meeting in San Jose on October 20, 2026, a San Francisco evening on October 22, 2026, and a Cisco Santana Row event in San Jose in November 2026 with no time or details yet.
Free
Women's Society of Cyberjutsu Bay Area
San Francisco · Metro area
Formerly occasional meetups
The last event on the group's Meetup page is a February 23, 2020 RSA week gathering. The chapter is not among the Women's Society of Cyberjutsu chapters listed; the nearest listed chapter is in Southern California.
Free
Education and student groups
SJSU Cyber Intelligence & Security Club
San Jose State University, ISB 842 · In the city
During the semester: CTF practice Fridays at 2:15 p.m. and workshops Thursdays at 1:30 p.m.
San Jose State is an NSA CAE school. The club's last dated event is an Intro to Network Defense workshop on October 10, 2025; its officer list is for fall 2025. SJSU also has a WiCyS student chapter.
Quiet: last activity Oct 2025Students only
Conference series
BSidesSF
City View at Metreon, 135 4th St, San Francisco · Regional
Annual two-day community conference in March, the weekend before RSAC
BSidesSF 2026 was held March 21 to 22, 2026. The status is quiet only because the conference runs once a year; the site had not announced 2027 dates when checked.
Quiet: last activity Mar 2026Paid
Technical user groups
Cloud Security Alliance San Francisco Chapter
San Francisco (host companies vary) · Metro area
Evening meetups every month or two, 5:30 to 8:00 p.m.
The most recent meetup found was July 29, 2026 at 600 Illinois St, San Francisco. The chapter says local membership and events are free. No later date was posted when checked.
Free
Adjacent communities
ACM Fremont Chapter
Fremont (Downtown Event Center and city community centers) · Metro area
About one tech talk a month on weekends; dates posted on the chapter calendar
A general computing chapter, not a security group. It has run security talks: "The AI Paradox in Security" on October 26, 2025 at the Irvington Community Center and "The Rise of Intelligent Attacks and Smarter Defenses" on May 16, 2026 at the Fremont Downtown Event Center, 3500 Capitol Ave. Its September 26, 2026 talk is on AI and software architecture.
Free
Directory checklist
10 of 19 national directories list a local chapter
Dormant groups
2 groups possibly dormant
- DC415 (DEF CON Group San Francisco): Possibly dormant: last public activity Mar 2026 [S57] [S58]
- Ohlone College Cyber Defense Center: Possibly dormant: last public activity Jun 2025 [S59] [S60]
Field notes
- DC408 moved in August 2026 from downtown San Jose to Marufuku Ramen at the Pruneyard in Campbell and sometimes shifts its Thursday during San Jose Sharks home games.
- ISSA Silicon Valley meetings alternate among host companies in San Jose and Sunnyvale; read the address on each meeting page.
- ISC2 Silicon Valley meets in Santa Clara and OWASP Bay Area changes host city every month (Pleasanton, San Mateo, Palo Alto, San Francisco and others), so check each listing.
- ISC2 East Bay holds its monthly meetings on Zoom; its conferences are in person at Las Positas College in Livermore.
- IAPP KnowledgeNet meetings are for IAPP members, and InfraGard requires an FBI background check.
- The California Cybersecurity Education Summit in Sacramento on October 8, 2026 is open to public sector staff only.
- The San Jose Cyber Security for Control Systems Meetup group posts only online events run by the national CS2AI organization, so it is not listed.
Sources
Numbered references for the listings on this page.
- S1https://dc408.com/events.html
- S2https://forum.defcon.org/node/256046
- S3https://sv-issa.org/meetings/october-2026-ai-hunt-using-claude-unmask-hackerbotclaw-attack-campaign
- S4https://luma.com/kszd8yw7
- S5https://luma.com/nydm47zd
- S6https://www.wicyssiliconvalley.org/events
- S7https://unpromptedcon.org/
- S8https://iapp.org/community/iapp-chapters/silicon-valley-ca
- S9https://owasp.glueup.com/event/owasp-global-appsec-usa-2026-167174/
- S10https://www.sans.org/cyber-security-training-events/san-francisco-2026
- S11https://www.2600.com/meetings/
- S12https://www.threatmodcon.com/san-francisco-2026
- S13https://isc2-eastbay-chapter.org/events/isc2-east-bay-fall-conference-2026/
- S14https://www.prnewswire.com/news-releases/rsac-conference-closes-35th-annual-flagship-event-backed-by-the-power-of-community-302726865.html
- S15https://www.moscone.com/events/rsac-2027-conference
- S16https://www.cybersecuritycloudexpo.com/northamerica/
- S17https://www.svcc-svcsi.org/
- S18https://www.svcc-svcsi.org/register
- S19https://luma.com/l6ftojej
- S20https://luma.com/wicys_sv
- S21https://bsidessf.org/
- S22https://www.hackthebay.org/
- S23https://www.meetup.com/pacifichackers/events/312859832/
- S24https://events.isacasiliconvalley.org/conference/
- S25https://phack.org/
- S26https://iapp.org/community/iapp-chapters/san-francisco-bay-area-ca
- S27https://web.archive.org/web/20260415103417/https://iapp.org/community/iapp-chapters/san-francisco-bay-area-ca
- S28https://web.archive.org/web/20260415100638/https://iapp.org/community/iapp-chapters/silicon-valley-ca
- S29https://engage.isaca.org/sanfranciscochapter/events/eventdescription?CalendarEventKey=b1ecb51a-02e6-477b-90fa-019dd1a55138&CommunityKey=f510bd50-4fdc-46b1-a329-d6ce8a64bae7
- S30https://engage.isaca.org/sanfranciscochapter/events/recentcommunityeventsdashboard
- S31https://isacasiliconvalley.org/
- S32https://isc2-eastbay-chapter.org/
- S33https://isc2-eastbay-chapter.org/member-meetings-past/september-10-2026-member-meeting/
- S34https://www.isc2-sf-chapter.org/events
- S35https://www.linkedin.com/company/isc2-sanfrancisco-chapter/
- S36https://www.isc2-siliconvalley-chapter.org/
- S37https://luma.com/55xepilc
- S38https://sfbay.issa.org/
- S39https://sv-issa.org/meetings/past
- S40https://www.meetup.com/bay-area-owasp/events/316673845/
- S41https://www.meetup.com/bay-area-owasp/
- S42https://owasp.org/www-chapter-bay-area/
- S43https://dc341.org/
- S44https://dc510.com/
- S45https://bsky.app/profile/dc510.bsky.social
- S46https://www.meetup.com/pacifichackers/
- S47https://www.meetup.com/silicon-valley-cybersecurity/
- S48https://www.cyversity.org/bay-area-chapter
- S49https://www.meetup.com/women-in-cybersecurity-cyberjutsu-bay-area-san-francisco/
- S50https://ischoolgroups.sjsu.edu/cisclub/?page_id=659
- S51https://ischoolgroups.sjsu.edu/cisclub/?page_id=714
- S52https://www.sjsu.edu/cybersecurity/student-resources/student-clubs.php
- S53https://bsidessf.org/venue
- S54https://csasfo.com/
- S55https://www.eventbrite.com/e/csa-san-francisco-chapter-july-29th-2026-tickets-1993018147931
- S56https://fremont.acm.org/events/list/?eventDisplay=past
- S57https://dc415.net/
- S58https://www.meetup.com/noisebridge/events/313738742/
- S59https://www.ohlonecs.com/cyber
- S60https://baycyber.net/pastsummercybercamps