Hackers are exploiting stolen email/password combinations to gain unauthorized access to Mastodon accounts.
Claims
Hackers are exploiting stolen email/password combinations to gain unauthorized access to Mastodon accounts.
Parent: CybersecurityEntity: MastodonImpact: negativeDate: Sep 7, 2026 - Sep 8, 2026Target: The security of Mastodon accounts
Users should change their passwords if they have used the same password for Mastodon and other platforms.
Parent: Password SecurityEntity: UsersImpact: negativeDate: Sep 7, 2026 - Sep 8, 2026Target: The practice of reusing passwords across multiple accounts
Source posts
IMPORTANT MASTODON PASSWORD SECURITY/PRIVACY ISSUE…
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For everyone:
If you are using the same password for Mastodon that you use anywhere else, CHANGE YOUR PASSWORD NOW.
A hacker is stealing accounts using something called “credential stuffing.” This means they use email/password combinations stolen from other sites.
You can check if your email is in a data breach elsewhere:
https://haveibeenpwned.com
Create a new strong password:
1. 12+ characters
2. Capital/lowercase letters
3. At least one special character
For admins:
The hacker is using the same unique user agent.
Go-http-client/1.1
We’re seeing a pattern of IPs, but they’re from varying ISPs. They’re also not changing the account emails.
#Mastodon #Password #InfoSec #OpSec #Security #Privacy #Hacked #Hacker
337 boosts · 167 favs · 15 replies · Sep 7, 2026
#hacker#hacked#privacy#security#opsec#infosec
IMPORTANT MASTODON PASSWORD SECURITY/PRIVACY ISSUE…
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For everyone:
If you are using the same password for Mastodon that I use, CHANGE YOUR PASSWORD NOW.
It's my password, and I call dibs...
Hint: h*****2
40 boosts · 1 favs · 29 replies · Sep 8, 2026