Slack Resets Account Passwords Compromised During 2015 Hack
Slack has reset the passwords of 1% of its user accounts because these may have been compromised in a 2015 security breach. The company stated that this incident involved a third party obtaining unauthorized access to a Slack database containing “user profile information including usernames and irreversibly encrypted, or ‘hashed,’ passwords.”
While Slack already reset passwords for the accounts it deemed to have been impacted by the breach in 2015, a security researcher recently discovered that not all affected accounts had been reset. Slack is therefore resetting all accounts that were created before March 2015 and that still have the same password.