Russian hackers reportedly breached telecom network months before attack

[rbc]

The Russian hackers that targeted Ukraine’s largest telecommunications provider in December, knocking out mobile phone and home internet service to roughly 24 million people, were in the company’s networks for months before wiping “almost everything,” a senior Ukrainian government official said in an interview published Thursday.

Illia Vitiuk, the head of the Security Service of Ukraine’s (SBU) cybersecurity department, told Reuters in late December that the attack was likely the work of the potent Russian military intelligence hacking unit known as “Sandworm,” and that the hackers had accessed Kyivstar’s network since May 2023 but perhaps even earlier.
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Russian hackers reportedly breached telecom network months before attack