Active Matrix Rooms

Active Cybersecurity Matrix Rooms

Find 422 active cybersecurity Matrix rooms and spaces, sorted by real-time message velocity. Stop joining dead rooms — updated live. We only count messages to measure activity — message content is never read, stored, or indexed.

422 active rooms · sorted by message count · updated live · content never stored

#1

#!

Security. Privacy. Decentralization. Digital Sovereignty. Weekly hangout Thursday at 19:00 PST: https://meet.element.io/hashbang (Friday 03:00 UTC / 05:00 CEST)

132 msg/hr 117 members matrix.org
#2

CalyxOS

A privacy and security focused Android OS | https://calyxos.org | Issues / Feature requests: https://gitlab.com/CalyxOS/calyxos/issues

35 msg/hr 3,863 members 4d2.org
#3

devlug-bot

IT Security Feeds: https://forum.opnsense.org/index.php?PHPSESSID=02aghbesc7c4embfb9d2qrr9hq&action=.xml;type=rss;board=11.0 https://matrix.org/blog/feed https://my.proxmox.com/en/announcements/rss ht

3.8 msg/hr 48 members tchncs.de
#4

CVE Feeds

🛡️ Live feed van nieuwe CVE-kwetsbaarheden

3.3 msg/hr 15 members mtux.nl
#6

Linux

🇺🇦🇪🇺 | Talk about the GNU/HURD/Linux operating system and related stuff | be sensible, have nice discussions :) | oh, and https://dontasktoask.com | try not to become a help vampire, we have banhammer

2.2 msg/hr 1,293 members envs.net
#7

#openstack-security

OpenStack Security SIG || https://wiki.openstack.org/wiki/Security-SIG

1.8 msg/hr 87 members matrix.org
#8

PrivSec.dev — Practical Privacy & Security

Technical discussions only. No politics (except strictly related to privacy and security), no conspiracy theories, no "backdoored because proprietary". Any claim of malware/spyware must be backed up w

1.7 msg/hr 361 members arcticfoxes.net
#10

[PG] Main

Privacy Guides is your central privacy and security resource to protect yourself online • Have a question? Ask on our forum: https://discuss.privacyguides.net • https://www.privacyguides.org • Space:

0.83 msg/hr 2,593 members tchncs.de
#11

Fedora Security Team

Fedora Security Team |​ Discourse: https://discussion.fedoraproject.org/tag/security-sig

0.67 msg/hr 193 members matrix.org
#12

Cybersecurity-RSS

| Part of the Cybersec matrix.org community (#cyber-space:matrix.org) | Suggestions to our RSS feed list welcome at #cybersecurity:matrix.org

0.43 msg/hr 109 members yipping.zone
#15

Security.nl

📰 Beveiligingsnieuws & privacy-updates van Security.nl

0.08 msg/hr 5 members mtux.nl
#16

Haskell in Nixpkgs/NixOS

For discussions and questions about Haskell with Nix, cabal2nix and haskellPackages in nixpkgs | Current Docs: https://nixos.org/manual/nixpkgs/unstable/#haskell | Current PR: https://github.com/nixos

0.06 msg/hr 706 members nixos.org
#17

Nix Nerds

The Jupiter Broadcasting NixOS Channel: chat, support, community. Get your nixcon 2025 ticket! https://2025.nixcon.org/ 5-7 September 2025 @Switzerland Check if you are eligible for a *free* ticket:

0.06 msg/hr 1,910 members jupiterbroadcasting.com
#18

Hack Liberty Community

We are a group of cypherpunks, privacy advocates, engineers, and philosophers dedicated to the pursuit of truth, liberty, and knowledge for all. We believe technology is a tool for liberation, not ens

0 msg/hr 26,111 members envs.net
#19

Anonymity Privacy and Security

This is where we discuss ways to protect your online identity and maintain privacy. Share experiences, learn strategies, and explore latest developments in online security. Join us and let's work towa

0 msg/hr 25,596 members envs.net
#20

Cypherpunk Cryptopia

Welcome to the Cypherpunk Cryptopia, where privacy, security, and freedom take center stage. Join us as we discuss cryptography, decentralization, and online anonymity, working towards reshaping the d

0 msg/hr 23,706 members tchncs.de
#21

Radios and Wireless Hacking

Step into a world of frequencies and signals where experts and enthusiasts meet. Explore the intricate art of hacking wireless systems, discover new techniques, and share your knowledge with like-mind

0 msg/hr 22,577 members tchncs.de
#22

RSS - Hack Liberty News

Feed List: https://paste.hackliberty.org/?99738ed5ca137027#4gipqVGWpsjPKUVhUV28txtwEmksb9neUsztNK3LxA6a | Topics: agorism, agorist, agorist philosophy, alternative currencies, anarchism, anarcho-capit

0 msg/hr 22,555 members tchncs.de
#23

AffRip

AffRip room, topics: affiliate marketing, hacking, crypto, technology, programming, operating systems, memes and more join us on our great community! tech, hack, hacking, cyber, ghidra, ransom, pirac

0 msg/hr 11,545 members midov.pl
#25

Techlore - Main

Spreading privacy and security to the masses. This is our main on-topic privacy and security room. Join a more casual chat at #techlore-chat:matrix.org. Want to explore even more rooms? Open the Matri

0 msg/hr 8,704 members techlore.net
#27

Privacy Guides

Privacy Guides is your central privacy and security resource to protect yourself online • https://www.privacyguides.org • Rules: https://www.privacyguides.org/coc

0 msg/hr 4,438 members tchncs.de
#29

Cybersecurity-General

Part of the Cybersec matrix.org community (#cyber-space:matrix.org) The room needs urgent attention? @ all the mods! RULES: https://cybersec-rules.neocities.org

0 msg/hr 3,564 members matrix.org
#30

Nim Security

A channel for all offensive/defensive security projects in Nim. Bridged to the nim discord channel #security

0 msg/hr 3,503 members matrix.org
#32

Techlore - #🎄•chat [Discord]

Spreading privacy and security to the masses--with style. Welcome to our casual chat room.

0 msg/hr 2,865 members techlore.net
#33

RSS - Dark Web News

Stay up to date with the latest Dark Web news through our fast polling RSS feed, delivering real-time updates on illicit activities, emerging cyber threats, and technological advancements within the h

0 msg/hr 2,550 members tchncs.de
#34

BlackArch

Official BlackArch Linux Channel | Help, Support, Hacking, Socializing, Trolling (only me) | DM / highlight members without valid reason = BAN | https://blackarch.org/faq.html | Tools Count: 2850

0 msg/hr 2,359 members matrix.org
#35

Hacking

0 msg/hr 2,355 members matrix.org
#38

spring-security

Welcome. Ask away! Unless otherwise specified we assume you're using the latest 5.x version of Spring Security

0 msg/hr 2,165 members matrix.org
#40

#sysadmin | Systems Administration

#ops:matrix.org Provisioning, orchestration, configuration, networking, security, maintenance, firefighting, and all things system administration

0 msg/hr 2,078 members matrix.org
#42

Linux

🇺🇦 | Talk about the GNU/HURD/Linux operating system and related stuff | be sensible, have nice discussions :) | oh, and https://dontasktoask.com | try not to become a help vampire, we have banhammers

0 msg/hr 1,956 members matrix.org
#43

!aBXqGDWIxVYeYxVbRu:matrix.org

| Part of the Cybersec matrix.org community (#cyber-space:matrix.org) | The room needs urgent attention? @ all the mods! | RULES: https://cybersec-rules.thomcat.rocks | "you seem to be completely in l

0 msg/hr 1,781 members matrix.org
#45

Secure Messaging Apps

Discussion on secure messaging apps like: Signal, Wire, Telegram, Threema, Wickr etc. ... Security related.

0 msg/hr 1,654 members matrix.org
#46

Sicurezza Informatica

(questo gruppo è bridgiato da telegram, su matrix potreste vedere alcuni comandi fatti a vuoto, che sono in realtà fatti sul gruppo su telegram https://t.me/infosecita)

0 msg/hr 1,588 members matrix.org
#49

Win96 Malware

Bridge to Windows96 #win96-malware

0 msg/hr 1,340 members matrix.org
#51

OpenSSL

LATEST RELEASES: 3.0-alpha13 (11-MAR-2021), 1.1.1k (25-MAR-2021) | SECURITY ADVISORY: https://www.openssl.org/news/secadv/20210325.txt

0 msg/hr 1,260 members matrix.org
#53

[PG] Main

Privacy Guides is your central privacy and security resource to protect yourself online • Have a question? Ask on our forum: https://discuss.privacyguides.net • https://www.privacyguides.org • Space:

0 msg/hr 1,113 members neat.chat
#54

Nothing To Hide Privacy Chat

Permanently moved to #privacy-security-anonymity:anonymousplanet.net community. Rules: https://psa.anonymousplanet.org/#general | Privacy, surveillance self defense, opsec, digital rights, encryption,

0 msg/hr 1,060 members tchncs.de
#55

Hackers (Encrypted)

Welcome to the hacker hangout | No politics | Be patient with questions, it might take hours for people to respond. | Please keep conversations family friendly | Checkout #malware:matrix.org for malw

0 msg/hr 1,043 members matrix.org
#56

[email protected]

Kuketz-Blog: IT-Sicherheit | Datenschutz | Hacking - Weitere Infos: https://www.kuketz-blog.de/chat/

0 msg/hr 1,008 members matrix.org
#57

Free Software Movement

Libre Software, free file formats, open standards/protocols. See also: #libregaming-matchmaking:tchncs.de https://matrixrooms.info | Free Software (popularly marketed as Open Source, OSS, FOSS, or FL

0 msg/hr 978 members midov.pl
#58

Cybersec

General Cybersecurity Discussion | +stardust:matrix.org

0 msg/hr 971 members matrix.org
#59

Linux

🇺🇦🇪🇺 | Talk about the GNU/HURD/Linux operating system and related stuff | be sensible, have nice discussions :) | oh, and https://dontasktoask.com | try not to become a help vampire, we have banhammer

0 msg/hr 955 members tilde.fun
#60

Opsec

Privacy and Security - Rules of opsec: No misinformation or trolling, No Excessive language, we're all adults but don't go overboard, No spam or malicious motives, Keep off topic discussions to

0 msg/hr 944 members librem.one
#62

Nix Package Manager development

For people hacking on Nix: https://github.com/NixOS/nix Nix maintainers can be reached here.

0 msg/hr 912 members nixos.org
#63

Cybercrime

anonymity, carding, malware, bank logs, scaming, blackmailing

0 msg/hr 888 members matrix.org
#64

RUSSIANS HACKERS

hacker, cracker, coder, programmer, carding, virus control, infection, the dark side, those same Russians hackers Cyber security community https://t.me/russianshackers

0 msg/hr 860 members matrix.org
#66

Liberation Technology

Free software, open source, DIY, hacking, surveillance self-defence, digital co-ops. Code of conduct: #matrixunited-space:pixie.town.

0 msg/hr 836 members ponies.im
#67

Privacy Security Anonymity

Everything about Privacy, Security and Anonymity. Providing a consolidated view of all the main PSA community rooms and also some related Spaces and Rooms on Matrix in a single view.

0 msg/hr 829 members matrix.org
#68

Anonymity

Permanently moved to #privacy-security-anonymity:anonymousplanet.net community. All about anonymity. Read our guide at https://anonymousplanet.org. Rules: https://psa.anonymousplanet.org. Enjoy your s

0 msg/hr 805 members matrix.anonymousplanet.org
#69

NixOS Security Triage

Coordination and triage of security issues in nixpkgs | Discussions in #security-discuss:nixos.org | Open PRs: https://github.com/NixOS/nixpkgs/pulls?q=is%3Apr+is%3Aopen+sort%3Aupdated-desc+label%3A%2

0 msg/hr 689 members nixos.org
#70

The New Oil - Main

A community dedicated to helping beginners and non-tech-savvy people begin their data privacy & cybersecurity journeys. Website: https://www.thenewoil.org | Rules: #thenewoil:matrix.org

0 msg/hr 674 members matrix.org
#71

Mozilla Security

security conversations related to the Mozilla community and products. [Please don't disclose vulnerabilities here! File a security bug at bugzilla.mozilla.org or send mail to [email protected]]

0 msg/hr 645 members mozilla.org
#72

Hacking

Discuss Various Types of Ethical Hacking

0 msg/hr 580 members matrix.org
#75

Cybersecurity-General

Part of the Cybersec matrix.org community (#cyber-space:matrix.org) The room needs urgent attention? @ all the mods! RULES: https://cybersec-rules.neocities.org

0 msg/hr 488 members envs.net
#76

PSA Community

Privacy Security Anonymity Community, Chatrooms Rules: https://psa.anonymousplanet.org/

0 msg/hr 429 members tchncs.de
#77

Cybersecurity-RSS

| Part of the Cybersec matrix.org community (#cyber-space:matrix.org) | Suggestions to our RSS feed list welcome at #cybersecurity:matrix.org

0 msg/hr 417 members matrix.org
#78

NixOS Security Discussions

Discussions around Security | Triaging happens in #security:nixos.org

0 msg/hr 407 members nixos.org
#79

Self-hosting | Security | Sysadmin | Homelab | Programming

Welcome to our chat channel dedicated to all things related to self-hosting, cyber security, system administration, and homelab discussions and support! Whether you're an experienced sysadmin, a cyber

0 msg/hr 392 members mozilla.org
#80

Nintendo Switch

See it here first on #NintendoSwitch! A multicultural community of friends, fun & games. Get your daily dose of updates, news, reviews and experiences from Switchians around the globe! Join us for

0 msg/hr 388 members matrix.org
#81

Hackers Place

Discuss any topic here. Discuss stuff ranging from hacking, Anonymity to anything except religion. Lets Learn and Evolve together.

0 msg/hr 371 members matrix.org
#82

Krita

This is a channel for developers and users of Krita, not a pro support chat room. If you leave, we cannot reply. Frequently asked questions: https://docs.krita.org/en/KritaFAQ.html | You can also ask

0 msg/hr 365 members calitabby.net
#83

Wired Rehab

Wired Rehab is a cypherpunk collective for better digital-spaces and better analog-selves | wired.rehab | Tags: agorism, philosophy, anonyminity, censorship evasion, decentralization, privacy, freedom

0 msg/hr 361 members aria-net.org
#84

hacking

This is our world now... the world of the electron and the switch, the beauty of the baud.

0 msg/hr 356 members librem.one
#85

Netflix/security_monkey

Security Monkey is EOL in 2020 - Please consider migrating to another tool

0 msg/hr 347 members gitter.im
#86

Science of Matrix Reading Group

Exchange of and on scientific papers, books and related resources on all things Matrix. See room pin and https://github.com/jryans/awesome-matrix#research for the current paper list. Topics range from

0 msg/hr 343 members dsn.tm.kit.edu
#88

Hackerspaces & Makerspaces

Hacking, DIY, makers, crafting, etc. | Canada #ents:tang.ents.ca | Hackerspace.gr Athens, Greece #hsgr:matrix.org | Erfa Salzburg, Austria #chaossbg:darkfasel.net | Brussels #hsbxl:hackerspace.be | Ur

0 msg/hr 332 members matrix.org
#90

Hacking

hacking general

0 msg/hr 314 members matrix.org

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