SmarterTools confirmed last week that the Warlock (aka Storm-2603) ransomware gang breached its network by exploiting an unpatched SmarterMail instance.
The incident took place on January 29, 2026, when a mail server that was not updated to the latest version was compromised, the company’s Chief Commercial Officer, Derek Curtis, said.
“Prior to the breach, we had approximately 30 servers/VMs