CUCyber (Columbia University Computer Security Club)
Thu, Oct 15, 2026 · 7:00 p.m.
CSB 480, Mudd Building, Columbia University, Morningside Heights · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
New York
Yonkers, NY cybersecurity events & groups
No security group or event with a dated meeting was found inside Yonkers itself. Yonkers readers draw on the New York City groups to the south: monthly hacker meetups such as NYC2600 and NYSEC, chapters of ISC2, ISACA, OWASP and IAPP, and Hack Manhattan study groups. The largest local events are BSidesNYC on October 17, 2026 and the NY Metro Joint Cyber Security Conference on November 5, 2026.
Start here
- NYC2600: Free, open and monthly; just show up at the Citigroup Center food court in Manhattan on the first Friday.
- BSidesNYC 0x06: The volunteer-run community conference on October 17, 2026, with pay-what-you-can tickets starting at $0.
- NYC Red Team Study Group (Hack Manhattan): A free, hands-on study group every other Saturday at a public hackerspace.
Six months at a glance
Datebook
October 2026
BSidesNYC 0x06
Sat, Oct 17, 2026 · 8:00 a.m. to 5:00 p.m.
John Jay College of Criminal Justice, 524 West 59th Street, Manhattan · Metro area
Tickets are pay what you can: $0, $15, $30 or $45, all with the same access. Tickets may sell out.
ConfirmedConferenceFreePaid
CUCyber (Columbia University Computer Security Club)
Thu, Oct 22, 2026 · 7:00 p.m.
CSB 480, Mudd Building, Columbia University, Morningside Heights · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
New York City Cybersecurity Summit 2026
Thu, Oct 22, 2026 · From 8:00 a.m.
New York Marriott Marquis, 1535 Broadway, Manhattan · Metro area
Run by Government Technology for public sector staff; attendees must meet the organizer's eligibility criteria. The organizer page says it is open to the public sector only and registration is free.
ConfirmedSummitFreeVendor-hosted
CUCyber (Columbia University Computer Security Club)
Thu, Oct 29, 2026 · 7:00 p.m.
CSB 480, Mudd Building, Columbia University, Morningside Heights · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
SecureWorld New York City 2026
Thu, Oct 29, 2026
New York Marriott Marquis, 1535 Broadway, Manhattan · Metro area
The event page shows a generic "This event has already passed" banner; it is a site template issue, and the page lists October 29, 2026.
ConfirmedConferencePaidVendor-hosted
November 2026
CUCyber (Columbia University Computer Security Club)
Thu, Nov 5, 2026 · 7:00 p.m.
CSB 480, Mudd Building, Columbia University, Morningside Heights · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
NY Metro Joint Cyber Security Conference 2026
Thu, Nov 5 to Fri, Nov 6, 2026 · Conference on November 5; workshops on November 6
Civic Hall, 124 East 14th Street, Manhattan (conference); BMCC, 199 Chambers Street, Manhattan (workshops) · Metro area
The 13th edition, organized jointly by ISSA, ISACA, ISOC, HTCIA, InfraGard and ISC2 chapters. Registration is through Tixtree; no price could be read, so access is a judgement call.
ConfirmedConferencePaid
NYC2600
Fri, Nov 6, 2026 · 5:00 p.m.
Citigroup Center food court, 53rd Street and Lexington Avenue, Manhattan · Metro area
Per published schedule; confirm with organizer.
MeetingFree
CUCyber (Columbia University Computer Security Club)
Thu, Nov 12, 2026 · 7:00 p.m.
CSB 480, Mudd Building, Columbia University, Morningside Heights · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
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 · Metro area
Run by CyberRisk Alliance. Standard admission is $325 and is limited to working security and IT practitioners. The registration page reserves admission for active practitioners, subject to review; standard admission is $325.
ConfirmedSummitPaidVetting requiredVendor-hosted
CUCyber (Columbia University Computer Security Club)
Thu, Nov 19, 2026 · 7:00 p.m.
CSB 480, Mudd Building, Columbia University, Morningside Heights · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
CUCyber (Columbia University Computer Security Club)
Thu, Nov 26, 2026 · 7:00 p.m.
CSB 480, Mudd Building, Columbia University, Morningside Heights · Metro area
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 · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
NYC2600
Fri, Dec 4, 2026 · 5:00 p.m.
Citigroup Center food court, 53rd Street and Lexington Avenue, Manhattan · Metro area
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 · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
CUCyber (Columbia University Computer Security Club)
Thu, Dec 17, 2026 · 7:00 p.m.
CSB 480, Mudd Building, Columbia University, Morningside Heights · Metro area
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 · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
CUCyber (Columbia University Computer Security Club)
Thu, Dec 31, 2026 · 7:00 p.m.
CSB 480, Mudd Building, Columbia University, Morningside Heights · Metro area
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 · Metro area
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 · Metro area
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 · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
CUCyber (Columbia University Computer Security Club)
Thu, Jan 21, 2027 · 7:00 p.m.
CSB 480, Mudd Building, Columbia University, Morningside Heights · Metro area
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 · Metro area
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 · Metro area
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 · Metro area
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 · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
CUCyber (Columbia University Computer Security Club)
Thu, Feb 18, 2027 · 7:00 p.m.
CSB 480, Mudd Building, Columbia University, Morningside Heights · Metro area
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.
New York City; venue to be announced · Metro area
Run by CyberRisk Alliance. The date is listed; the venue is not yet announced.
ConfirmedSummitPaidVendor-hosted
CUCyber (Columbia University Computer Security Club)
Thu, Feb 25, 2027 · 7:00 p.m.
CSB 480, Mudd Building, Columbia University, Morningside Heights · Metro area
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 · Metro area
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 · Metro area
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 · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
CUCyber (Columbia University Computer Security Club)
Thu, Mar 18, 2027 · 7:00 p.m.
CSB 480, Mudd Building, Columbia University, Morningside Heights · Metro area
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 · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
April 2027
CUCyber (Columbia University Computer Security Club)
Thu, Apr 1, 2027 · 7:00 p.m.
CSB 480, Mudd Building, Columbia University, Morningside Heights · Metro area
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 · Metro area
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 · Metro area
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 · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
CUCyber (Columbia University Computer Security Club)
Thu, Apr 22, 2027 · 7:00 p.m.
CSB 480, Mudd Building, Columbia University, Morningside Heights · Metro area
Per published schedule; confirm with organizer.
MeetingStudents only
CUCyber (Columbia University Computer Security Club)
Thu, Apr 29, 2027 · 7:00 p.m.
CSB 480, Mudd Building, Columbia University, Morningside Heights · Metro area
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 · Metro area
Hosted by Fordham University with the FBI. In-person registration is $1,175, opens in January 2027, and admission is by approval only.
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
Summercon 2027
Usually held in July in Brooklyn; 2027 dates not yet announced
Brooklyn (2026 edition at Littlefield) · Metro area
ExpectedConferencePaid
Groups & associations
Professional associations
IAPP KnowledgeNet New York
Manhattan law firm offices · Metro area
Irregular evening panels hosted at member firms; no meetings scheduled
A privacy professionals' chapter. 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 · Metro area
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. A CRISC online review course starts November 1, 2026; the October review course has already started.
PaidMembers only
engage.isaca.org/newyorkmetropolitanchapter/home [S23] [S24]
ISC2 New York City & Long Island Chapter
Manhattan (Civic Hall or Horizon Media), Half Hollow Hills Community Library in Dix Hills, and online · Metro area
Monthly chapter meeting on a weekday evening, held in Manhattan and on Long Island at the same time and streamed online
The September 24, 2026 meeting was at Civic Hall, 124 East 14th Street. The former (ISC)2 NY Metro Chapter domain now points to this chapter. Access is listed as free as a judgement call; the site does not state a price.
Free
ISSA New York Metro Chapter
Manhattan · Metro area
Main activity is the annual NY Metro Joint Cyber Security Conference; no chapter meetings posted
The chapter website shows 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.
Quiet: last activity Oct 2025Paid
OWASP New York City Chapter
Manhattan and online · Metro area
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. Meetings are open to non-members.
Free
Hacker and grassroots groups
Brooklyn NYSEC
Someday Bar, 364 Atlantic Avenue, Brooklyn · Metro area
Fifth Tuesday of the month when there is one, 6:00 p.m. (December 29, 2026 and March 30, 2027 fall on fifth Tuesdays)
The Brooklyn edition of NYSEC. The site serves only http://.
Free
DC212 (DEF CON Group New York City)
Usually Fat Cat Fab Lab, West Village, Manhattan · Metro area
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. The Meetup group is private, so venues show only to members.
Free
Hack Manhattan Locksport Workshop
Hack Manhattan, 34 West 37th Street, Unit 2R, Manhattan · Metro area
Every other Sunday, 7:00 p.m., through December 27, 2026
Run by the hackerspace; 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 · Metro area
Every other Saturday, 6:00 to 7:00 p.m. (October 17, 2026 is posted)
An ethical red teaming study group hosted at the Hack Manhattan hackerspace, which also holds public open houses on Tuesday and Thursday evenings.
Free
NYC2600
Citigroup Center food court, 53rd Street and Lexington Avenue, Manhattan · Metro area
First Friday of the month, from 5:00 p.m.
The October 2, 2026 meeting was announced at the Citigroup Center in Manhattan; no report of it is posted, so last_activity stays at the September meeting.
Free
NYSEC
d.b.a., 41 1st Avenue, East Village, Manhattan · Metro area
Third Tuesday of the month, 6:00 p.m.
An informal drinks meetup for security people. The site serves only http://; the https:// address refused connections on October 1, 2026.
Free
Inclusion and career communities
WiCyS NY Metro Affiliate
Manhattan (recent events at Horizon Media, 75 Varick Street) · Metro area
Irregular evening mixers, panels and workshops
The last event found was Pride in Cyber on June 23, 2026. wicysnymetro.org could not be reached on October 2, 2026.
Free
Women's Society of Cyberjutsu NYC Chapter
New York City · Metro area
Irregular networking sessions
The WSC site blocks automated reading (HTTP 403). Calendar listings seen in search results show New York City networking sessions on January 9 and February 6, 2026, and the owner confirmed the chapter active on October 2, 2026.
Free
Public-private and government
New York City Metro InfraGard Members Alliance
New York City · Metro area
Member meetings not posted publicly
Membership requires FBI vetting. The alliance's events page showed "No events at the moment" and its past-events page did not load. The last dated activity is the 2025 NY Metro Joint Cyber Security Conference, which InfraGard co-organizes.
Quiet: last activity Oct 2025Vetting required
Education and student groups
CUCyber (Columbia University Computer Security Club)
CSB 480, Mudd Building, Columbia University, Morningside Heights · Metro area
Thursdays at 7:00 p.m. during the academic year, in person and on Zoom
The club calendar is an embedded Google Calendar that automated tools cannot read; the weekly Thursday 7:00 p.m. schedule is on the club page. Open to Columbia students, faculty and affiliates.
Students only
NYU OSIRIS Lab
Room 1066, 370 Jay Street, NYU Tandon, Downtown Brooklyn · Metro area
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 OSIRIS lab site returned HTTP 404, so only the CSAW page is cited.
Students only
Conference series
BSidesNYC
John Jay College of Criminal Justice, 524 West 59th Street, Manhattan · Metro area
Annual one-day conference in October
Volunteer-run. The 2025 edition was on October 18, 2025; the 2026 edition is on October 17, 2026.
Quiet: last activity Oct 2025FreePaid
HOPE (Hackers On Planet Earth)
Manhattan (2026 edition at the New Yorker Hotel) · Metro area
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 · Metro area
Annual one-day conference in late October
Run by SecureWorld, an events company.
Quiet: last activity Oct 2025PaidVendor-hosted
Summercon
Littlefield, 635 Sackett Street, Brooklyn · Metro area
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.
Paid
Technical user groups
Cloud Security Meetup New York
Manhattan, with an occasional Jersey City session · Metro area
Irregular meetups, coworking sessions and cross-listed conference passes
Run by the Cloud Security Podcast team. Several recent listings are other organizers' conferences (LLM Day, SRE Day NYC); the last security-specific meetup was a CTF team night on April 8, 2026.
Free
Directory checklist
14 of 19 national directories list a local chapter
Dormant groups
1 group with no public activity for 18 months or more
- HTCIA New York Metro Chapter: last public activity Feb 2024 [S45] [S46]
Field notes
- No in-city Yonkers entries were found. Westchester Community College and Pace University (Pleasantville and White Plains) have cybersecurity clubs, but no dated meeting is published on a page we could read, so they are not listed.
- Every listed group meets in New York City, mostly Manhattan, so plan for the trip from Westchester; several meet in the evening.
- NYC2600 meets in the public food court of the Citigroup Center at 53rd Street and Lexington Avenue; look for the cluster of tables with laptops.
- NYSEC has two editions: Manhattan on third Tuesdays at d.b.a. and Brooklyn on fifth Tuesdays at Someday Bar.
- DC212's Meetup group is private; join it to see meeting venues.
- The ISC2 New York City & Long Island Chapter holds each monthly meeting in Manhattan and in Dix Hills at the same time, with an online option.
- New York Metro InfraGard meetings are for FBI-vetted members, and the alliance posts no public meeting dates.
- The Women's Society of Cyberjutsu site could not be read by our tools; the owner confirmed the NYC chapter active on October 2, 2026.
- Several large one-day summits (SecureWorld, the Official Cybersecurity Summit, GovTech) are run by events companies and are limited to practitioners or public sector staff.
Sources
Numbered references for the listings on this page.
- S1https://cucyber.cs.columbia.edu/
- S2https://bsidesnyc.org/
- S3https://bsidesnyc.org/registration/
- S4http://nysec.io/
- S5https://calendar.google.com/calendar/embed?src=tvrptkil8r120s1guaefhp23hs%40group.calendar.google.com&ctz=America%2FNew_York
- S6https://events.govtech.com/New-York-City-Cybersecurity-Summit
- S7https://events.secureworld.io/details/new-york-ny-2026/
- S8https://infosecurity.nyc/
- S9https://infosecurity.nyc/about.htm
- S10https://nyc2600.net/
- S11https://nyc2600.net/2026/09/02/nyc2600-meeting-september-2026/
- S12https://nyc2600.net/2026/09/30/nyc2600-meeting-october-2026/
- S13https://csaw.io/
- S14https://csaw.io/competition/capture-the-flag
- S15https://cyberriskalliance.swoogo.com/NewYork-Fall-2026
- S16https://cybersecuritysummit.com/summits/
- S17https://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/
- S18https://www.bsidesct.org/
- S19https://www.hope.net/
- S20https://www.summercon.org/
- S21https://iapp.org/community/iapp-chapters/new-york-ny
- S22https://www.orrick.com/en/Events/2026/02/IAPP-KnowledgeNet-Healthcare-AI-and-Privacy-Perspectives-2026
- S23https://engage.isaca.org/newyorkmetropolitanchapter/home
- S24https://engage.isaca.org/newyorkmetropolitanchapter/events/eventdescription?CalendarEventKey=2c5b407c-7edd-40fc-9e82-019b6cf731a7&CommunityKey=bf8a8e3e-101f-4880-a2db-69da2ff823cf&Home=%2Fnewyorkmetropolitanchapter%2Fevents%2Fcalendar&hlmlt=ED
- S25https://isc2chapter-liny.org/all-events/
- S26https://www.issa.nyc/
- S27https://2025.infosecurity.nyc/
- S28https://owasp.org/www-chapter-new-york-city/
- S29https://luma.com/owasp-new-york-city
- S30https://luma.com/orv89hgi
- S31https://www.meetup.com/owasp-new-york-city-chapter/
- S32https://dc212.nyc/
- S33https://www.meetup.com/defcon212/
- S34https://www.meetup.com/hackmanhattan/
- S35https://www.meetup.com/hackmanhattan/events/316246653/
- S36https://www.meetup.com/hackmanhattan/events/316218987/
- S37https://sites.google.com/wicys.org/wicysnymetro/
- S38https://www.wicys.org/event/wicys-ny-metro-affiliate-pride-in-cyber-securing-the-future-together/
- S39https://www.wicys.org/event/wicys-new-york-metro-affiliate-spring-into-cyber-leadership-innovation-impact/
- S40https://womenscyberjutsu.org/group/NYC
- S41https://www.nym-infragard.us/
- S42https://bsidesnyc.org/archive/
- S43https://events.secureworld.io/details/new-york-ny-2025/
- S44https://www.meetup.com/cloud-security-meetup-new-york/
- S45https://www.htcia.org/ny-metro/
- S46https://members.htcia.org/events-calendar/details/htcia-new-york-metro-chapter-townhall-1059886