https://techcrunch.com/2023/03/16/cisa-nation-state-hackers-breach-federal-agency/

The U.S. government has warned that multiple cybercriminal gangs, including a nation state-backed hacking group, exploited a four-year-old software vulnerability in order to compromise a U.S. federal government agency.

A joint alert released by the CISA, the FBI, and the Multi-State Information Sharing and Analysis Center (known as MS-ISAC) on Wednesday revealed that hackers from multiple hacking groups exploited known vulnerabilities in Telerik, a user interface tool for web servers. This software — designed for building components and themes for web applications — was running on the U.S. agency’s internet-facing web server.