Bitdefender Threat Debrief

Bitdefender Threat Debrief | March 2026

By Jade Brown

Ransomware Group AtomSilo Returns After 5 Year Absence

This edition of the Bitdefender Threat Debrief covers several developments in the threat landscape, including the reemergence of AtomSIlo, a surge in 0APT’s claimed attacks, a threat emerging as tensions in the Iran war escalate, and more.

As ransomware continues to evolve, our goal with this monthly Bitdefender Threat Debrief is to help you stay ahead of the curve. To do this, we combine information from openly available sources (OSINT) - things like news reports and research – with data we gather by analyzing Data Leak Si…