US EditionUS Officials Issue ‘Emergency’ Cybersecurity Order After Hackers Breach a Government Agency
- On September 25, 2025, US cybersecurity authorities released an urgent order directing federal agencies to strengthen their network defenses following a breach of at least one agency by hackers.
- The directive followed months of exploitation of unknown vulnerabilities in Cisco security devices by an advanced threat actor linked to the ArcaneDoor espionage campaign tied to China.
- Cisco discovered three new vulnerabilities exploited by hackers, investigated the breaches in May 2025 with several agencies, and urged customers to update software promptly.
- Chris Butera from CISA noted that numerous federal systems are using the vulnerable Cisco software, while Sam Rubin warned that cyberattacks are likely to increase as threat actors exploit the newly released patches.
- The directive requires agencies to update and report compromises by end of Friday, initiating a federal scramble to detect and unplug compromised devices and prevent further damage.
35 Articles
35 Articles
US sounds alarm over hackers targeting Cisco security devices
WASHINGTON, USA – The US government’s cyber defense agency has issued urgent guidance to other federal agencies over hackers exploiting a previously unknown vulnerability in Cisco security devices. In an emergency directive issued Thursday, September 25, the Cybersecurity and Infrastructure Security Agency said government cyber workers had just over one day to account for all such devices plugged into their networks, scan them for malicious acti…
US cyber officials issue ‘emergency directive’ after hackers breach government agency
The Cybersecurity and Infrastructure Security Agency said it was aware of an ‘ongoing exploitation campaign by an advanced threat actor’ targeting appliances made by Cisco Systems
U.S. cybersecurity authorities issued an "emergency directive" on Thursday ordering federal agencies to protect their networks from an advanced group of hackers who have breached at least one agency in an apparent espionage campaign. Authorities have not specified who is behind the attacks, but independent experts believe the perpetrators are state-backed and operate out of China. The attackers have been exploiting previously unknown flaws in Ci…
US officials issue ‘emergency’ cybersecurity order after hackers breach at least one government agency
US cyber officials issued an “emergency directive” Thursday ordering federal agencies to defend their networks against an “advanced” group of hackers that have breached at least one agency in an apparent espionage campaign.
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