A rare advisory from the US National Security Agency (NSA), warning of attacks by Russian military intelligence on vulnerable e-mail servers, is not likely to dissuade the nation-state cyber-espionage group from attacking targets of interest, cybersecurity experts say. On Thursday, the NSA told organizations that a remotely exploitable vulnerability in the EXIM mail transfer agent, which comes installed by default on some versions of Linux, is being targeted by “Russian cyber actors from the GRU Main Center for Special Technologies (GTsST), field post number 74455”

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