> irvine, ca · verified sep 27, 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, OWASP and ISACA 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.
Fri, Oct 9, 2026 · 7:00 p.m. to 8:00 p.m.
UC Irvine, Irvine (room not posted on the club's events page)
Introduction to the Collegiate Cyber Defense Competition team; CCDC training follows on Tuesdays and Fridays.
ConfirmedMeetupStudents only
Fri, Oct 9, 2026 · 2:00 p.m. to 3:00 p.m.
Online
Online session with UCI Career Pathways (DCP).
ConfirmedWorkshopStudents only
Fri, Oct 9, 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
Thu, Oct 15, 2026 · 7:00 a.m. to 6:00 p.m.
Mile Square Golf Course, Fountain Valley · Metro area
Joint ISACA and IIA Orange County chapter conference on governance, risk and cybersecurity; 8 CPE. Registration is through Cvent.
ConfirmedConferencePaid
Thu, Oct 15, 2026 · 6:00 p.m. to 7:00 p.m.
UC Irvine, Irvine (room not posted on the club's events page)
Beginner workshop.
ConfirmedWorkshopStudents only
Thu, Oct 22, 2026 · 6:00 p.m. to 7:00 p.m.
UC Irvine, Irvine (room not posted on the club's events page)
Beginner workshop.
ConfirmedWorkshopStudents only
Sat, Oct 24, 2026 · 9:00 a.m. to 5:00 p.m.
UC Irvine, Irvine (room not posted on the club's events page)
Practice cyber defense competition for the CCDC team. The club marks this date as tentative.
ConfirmedCTFStudents only
Thu, Oct 29, 2026 · 6:00 p.m. to 7:00 p.m.
UC Irvine, Irvine (room not posted on the club's events page)
Beginner workshop.
ConfirmedWorkshopStudents only
Sat, Oct 31, 2026 · 9:00 a.m. to 5:00 p.m.
UC Irvine, Irvine (room not posted on the club's events page)
Invitational cyber defense competition for the CCDC team; the page does not say where it is held.
ConfirmedCTFStudents only
Thu, Nov 5, 2026 · 6:00 p.m. to 7:00 p.m.
UC Irvine, Irvine (room not posted on the club's events page)
Beginner capture-the-flag session.
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. Pricing is not shown on the event page.
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. The club marks this date as tentative.
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; free for qualified channel partners only.
ConfirmedConferenceFreeVetting requiredVendor-hosted
Thu, Nov 12, 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.
ConfirmedMeetupStudents only
Thu, Nov 12, 2026
Hilton Long Beach, Long Beach · Metro area
Run by Government Technology (e.Republic) for state and local government staff.
ConfirmedSummitVetting 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
First edition of a community conference organized with San Diego security chapters; up to 9 CPE. Ticket requests need approval and the price is not shown on the organizer pages.
ConfirmedConferencePaidVetting required
Thu, Nov 19, 2026 · 6:00 p.m. to 7:00 p.m.
UC Irvine, Irvine (room not posted on the club's events page)
Beginner workshop.
ConfirmedWorkshopStudents only
Thu, Nov 26, 2026 · 6:00 p.m. to 7:00 p.m.
UC Irvine, Irvine (room not posted on the club's events page)
Club social. The date falls on Thanksgiving; check the club page before going.
ConfirmedMeetupStudents only
Thu, Dec 3, 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.
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
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
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
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.
Irvine
One-day conference run by GuidePoint Security with vendor sessions. Attendance is by request and reviewed by the organizer. The registration page gives the venue as "[AV] Irvine"; the 2026 edition was in Irvine on April 2, 2026.
ConfirmedConferenceVetting requiredVendor-hosted
Wed, Mar 31, 2027
Hilton Los Angeles Culver City, Culver City · Regional
One-day hybrid conference run by an events company. Pricing is not shown on the event page.
ConfirmedConferencePaidVendor-hosted
Mon, May 10 to Sat, May 15, 2027
Hilton San Diego Bayfront, San Diego · Regional
Commercial training run by the SANS Institute; in person and virtual.
ConfirmedTrainingPaidVendor-hosted
Wed, Jul 28, 2027
Embassy Suites by Hilton Anaheim-South, Garden Grove · Metro area
One-day hybrid conference run by an events company. Pricing is not shown on the event page.
ConfirmedConferencePaidVendor-hosted
Announced without a date, or expected from past editions. Not confirmed.
Announced by the organizer; date not yet published.
Orange County · 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
Held on October 18 in 2025; no 2026 edition announced
Titan Student Union, 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. No meeting after 2026-09-23 was posted during research.
Free
meetup.com/cloud-security-alliance-csa-orange-c… [S26] [S27]
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). The last_activity date is the SoCalSec social at Golden Road Brewing, Anaheim, listed on the HTCIA calendar for 2026-09-21.
Members only
Orange County · Metro area
Occasional in-person happy hours and virtual KnowledgeNet sessions
Privacy-focused; KnowledgeNets are free for IAPP members. The last_activity date is the in-person SoCal Chapters Summer Happy Hour (August 12, 2026), seen in the search listing of the chapter page; the live page now shows no scheduled meetings.
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
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. Member prices are lower; registration is through Cvent.
Paid
Orange County; 2026 socials in Anaheim, Placentia, Pomona and Long Beach · 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. No future event was posted during research.
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.
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 2026-09-09 DEF CON recap as held.
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 in July 2026 and the site says the location may change month to month. The September 2026 meeting was on the third Friday (September 18).
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. Meetings are posted on Meetup through December 2026.
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.
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. The last_activity date is the NCyTE x STORM Community Connector (May 13, 2026).
Free
UC Irvine, Irvine · In the city
During the academic year: Thursday workshops (6:00 to 7:00 p.m.) and CCDC team training on Tuesdays (7:00 p.m., CS1 428) and Fridays (7:00 p.m., DBH 6011)
UC Irvine's cybersecurity club and competition teams (CCDC, CPTC, CTFs). The last_activity date is the 2026 Information Technology Competition at Cal Poly Pomona (April 19, 2026). Its fall 2026 events are listed separately; the twice-weekly CCDC training sessions are not.
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.
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 has no entry after 2026-02-28.
Quiet: last activity Feb 2026Free
418 E. Commonwealth Ave, Fullerton · Metro area
Open house ("Shopluck") on some Friday evenings; weekly online hacker happy hour on Thursdays
Adjacent: a general hackerspace (electronics, machining, computers) rather than a security group. It hosts OC2600.
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.