Ransomware Hacker Spotted Using Zero-Day Exploit on Business Phone VoIP Device Image

Ransomware attacks often occur through phishing emails or poorly-secured computers. But in this case, the hacker had enough know-how to uncover a new vulnerability in a Linux-based VoIP appliance from the business phone provider Mitel.  The resulting zero-day exploit allowed the hacker to break into the company’s network through a VoIP device, which had limited security safeguards onboard. The attack was designed to essentially hijack the Linux-based VoIP appliance so that the hacker could infiltrate other parts of the network.