Peach Sandstorm password spray campaigns enable intelligence collection at high-value targets

Since February 2023, Microsoft has observed password spray activity against thousands of organizations carried out by an actor we track as Peach Sandstorm HOLMIUM. Peach Sandstorm is an Iranian nation-state threat actor who has recently pursued organizations in the satellite, defense, and...

Destructive malware targeting Ukrainian organizations

Microsoft Threat Intelligence Center MSTIC has identified evidence of a destructive malware operation targeting multiple organizations in Ukraine. This malware first appeared on victim systems in Ukraine on January 13, 2022. Microsoft is aware of the ongoing geopolitical events in Ukraine and...

ICS-CERT Confirms Public Utility Compromised Recently

Attackers recently compromised a utility in the United States through an Internet-connected system that gave the attackers access to the utility’s internal control system network. The utility, which has not been named, had remote access enabled on some of its Internet-connected hosts and the...