Hacker groups chain VPN and Windows bugs to attack US government networks

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Hackers have gained access to government networks by combining VPN and Windows bugs, the Federal Bureau of Investigation (FBI) and the Cybersecurity and Infrastructure Security Agency (CISA) said in a joint security alert published on Friday.

Attacks have targeted federal and state, local, tribal, and territorial (SLTT) government networks. Attacks against non-government networks have also been detected, the two agencies said.

“CISA is aware of some instances where this activity resulted in unauthorized access to elections support systems; however, CISA has no evidence to date that integrity of elections data has been compromised,” the security alert reads.

“Although it does not appear these targets are being selected because of their proximity to elections information, there may be some risk to elections information housed on government networks,” officials also added.

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According to the joint alert, the observed attacks combined two security flaws known

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