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US officials say F5 Networks was breached by state-backed Chinese hackers, potentially affecting critical systems. CISA warns of widespread risk, while China denies involvement. Hackers reportedly infiltrated F5 for over a year.
A breach at US-based cybersecurity company F5 has been blamed on state-backed hackers from China. (Representative Image)
UPDATED: Oct 17, 2025 03:54 IST
A breach at US-based cybersecurity company F5 FFIV.O has been blamed on state-backed hackers from China, two people briefed on the investigation said on Thursday.
On Wednesday, US government officials said federal networks are being targeted by an unidentified "nation-state cyber threat actor" that is trying to exploit vulnerabilities in products made by F5. The company did not respond to Reuters' requests for comment.
Liu Pengyu, a spokesperson for the Chinese Embassy in Washington, said in a statement he was not familiar with the situation, but that "China consistently opposes and combats hacking activities in accordance with the law, and we are even more opposed to the dissemination of false information for political purposes."
The US Cybersecurity and Infrastructure Security Agency, when contacted by Reuters, did not confirm whether the breach was carried out by Chinese state-backed hackers.
"These same risks extend to any organisation using this technology, potentially leading to a catastrophic compromise of critical information systems," CISA acting Director Madhu Gottumukkala said in a statement, without specifying who was behind the hack.
The two people briefed on the investigation said the hackers were inside F5's network for more than a year.
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Published By:
Aashish Vashistha
Published On:
Oct 17, 2025
