Zendesk ticket systems worldwide have been compromised in a coordinated attack, with threat actors exploiting unsecured instances to launch a massive spam campaign at scale. Administrators should immediately audit access controls, enforce multi-factor authentication, and review ticket system configurations to identify and remediate any unauthorised access or suspicious activity within their environments.
Zendesk ticket systems hijacked in massive global spam wave BleepingComputer
Unsecured Zendesk systems fuel massive global spam wave SC Media