Hackers compromised firewall devices within the U.S. government, according to a senior federal official, amid broader warnings of cyberattacks on widely-used devices manufactured by Cisco Systems, Inc.
The U.S. Cybersecurity and Infrastructure Security Agency, or CISA, issued an emergency directive Thursday requiring federal agencies to address vulnerabilities and identify and mitigate potential breaches in hundreds of Cisco firewall devices active in the U.S. government. Cisco said in a security alert that the company was engaged in May 2025 with “multiple government agencies” to investigate attacks on the firewall devices.
Such access enables intruders to take