Name Mastodon
Languages English (en)
Users 18
Active users (last month) 5
Active users (last six months) 6
Characters per post (max) 500
Known instances 24,576
First sight Apr 29, 2022 UTC
Last successful check May 7, 2026 UTC
Noxious No
New No
Software Mastodon 4.3.8
Registrations Open (by admin approval)
E-mail chris@partridge.tech
Meta’s Threads moderation Unknown (this instance is not listed in the Anti-Meta Fedi Pact list), and its list of moderated instances is not accessible.
Most used hashtags (last week) catsofmastodon, ai, cats, caturday, cybersecurity, Fediverse, introduction
Short description
Taking the "Twitter" out of "InfoSec Twitter."
Long description
Privacy
It is important to understand that this service does not provide strong privacy guarantees - Mastodon is neither a private nor encrypted messenger. Please do not attempt to use Mastodon for secure or non-public communications, and recall that you alone are responsible for ensuring your privacy needs are met. This is true of all Mastodon instances.
It is important to understand that this service does not provide strong privacy guarantees - Mastodon is neither a private nor encrypted messenger. Please do not attempt to use Mastodon for secure or non-public communications, and recall that you alone are responsible for ensuring your privacy needs are met. This is true of all Mastodon instances.
Instance rules
- DO: Post content that is meaningful to you
- DO: Treat everyone on server and across servers with respect and decency
- DO: Support claims with clear evidence from reputable sources
- DO: Use content warnings when discussing sensitive topics (ex. violence)
- DON'T: Be tolerant of intolerance - report and disengage from people or servers that do not treat all people with respect and decency
- DON'T: Stalk, harass, or dox anyone
- DON'T: Post gore, graphic violence, pedophilia, necrophilia, etc.
- DON'T: Discriminate against others (ex. no racism, sexism, xenophobia, homophobia, transphobia, etc.)
- DON'T: Run commercial accounts or post advertisements for business services
- DON'T: Spam people with unwanted or repetitive content (ex. no bots)
Moderated instances [?]
Not available
Instances certainly moderating this instance [?]
None
Admin account tweedge@cybersecurity.theater
Date of creation Apr 28, 2022 UTC
Display name Chris Partridge
Bio
CloudSec manager at that online-bookstore-slash-server-rental company, adjunct professor at RIT, former janitor for r/cybersecurity, and sporadic FOSS contributor. Cat person. Generally cheerful ^_^
Always trying to learn new things, and I'd rather be corrected than be correct. I try to be correct the first time anyway though!
How can I help?
(posts searchable via tootfinder)
Always trying to learn new things, and I'd rather be corrected than be correct. I try to be correct the first time anyway though!
How can I help?
(posts searchable via tootfinder)
Statistics
Last 12 weeks activity (totals: 220 statuses, 29 logins, 0 registrations)
| S: 14 L: 3 R: 0 | S: 14 L: 2 R: 0 | S: 21 L: 3 R: 0 | S: 12 L: 3 R: 0 | S: 28 L: 2 R: 0 | S: 28 L: 3 R: 0 | S: 23 L: 3 R: 0 | S: 19 L: 3 R: 0 | S: 19 L: 2 R: 0 | S: 7 L: 3 R: 0 | S: 31 L: 2 R: 0 | S: 4 L: 0 R: 0 |
Last checks (green: OK; red: KO)
| 4/30/26, 1:23:11 AM UTC | 5/1/26, 3:20:42 AM UTC | 5/2/26, 1:42:25 AM UTC | 5/3/26, 1:41:57 AM UTC | 5/4/26, 1:40:12 AM UTC | 5/5/26, 2:07:22 AM UTC | 5/6/26, 1:55:46 AM UTC | 5/7/26, 1:38:44 AM UTC |
Succesful checks: 1349/1350 (99.93%)