Latest cybersecurity reporting from selected sources.

Storm-2949 turned stolen credentials into a cloud-wide breach, moving from identity compromise to large-scale data theft without using malware. This incident shows how threat actors can exploit trusted systems to operate undetected. The post How Storm-2949 turned a compromised identity into a cloud-wide breach appeared first on Microsoft Security Blog.

In September 2025, Anthropic disclosed that a state-sponsored threat actor used an AI coding agent to execute an autonomous cyber espionage campaign against 30 global targets. The AI handled 80-90% of tactical operations on its own, performing reconnaissance, writing exploit code, and attempting lateral movement at machine speed

Incident Responders Detail Top Ransomware and Business Email Compromise TacticsThere's no need to invest into sophisticated hacking operations when moving fast and exploiting well-trod techniques gives threat actors all the access they want. Threat actors are prioritizing "low-complexity entry points, rather than investing in sophisticated exploits," say incident responders.

The United States Treasury Department said it suffered a "major cybersecurity incident" that allowed suspected Chinese threat actors to remotely access some computers and unclassified documents.  "On December 8, 2024, Treasury was notified by a third-party software service provider, BeyondTrust, that a threat actor had gained access to a key used by the vendor to secure a cloud-based

An unknown threat actor has been observed weaponizing high-severity security flaws in the MinIO high-performance object storage system to achieve unauthorized code execution on affected servers

Iranian government-sponsored threat actors have been blamed for compromising a U.S. federal agency by taking advantage of the Log4Shell vulnerability in an unpatched VMware Horizon server