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The Bulgarian government announced on Tuesday that the postal service, which has been experiencing frequent technical problems since mid-April, has been the victim of a cyber attack from Russia.
“The cyber attack, which has disrupted the work of the postal service since April 16, bears the signature of Russian services,” Deputy Prime Minister Kalina Konstantinova said at a news conference.
As a result of this attack, services for the transport of letters and parcels to and from abroad, in addition to paying bills and paying pensions, were temporarily interrupted.
Government adviser Vasiliev Velichkov, a computer science expert, expressed regret that the attack resulted in the loss of part of the archive forever, without giving further details about the nature of these documents.
He explained that the information virus, which initially infected the central post office in Sofia before spreading through the network, “was designed not to affect data received from Russia and the former Soviet republics.”
The network of the Bulgarian Post contains more than 6000 computers, half of which are older than 15 years, and is therefore vulnerable to such attacks because it does not have a suitable antivirus system.
According to the National Security Agency, “other public institutions” have been hacked, but on a smaller scale.
Velichkov stressed that “the number of attacks in Ukraine has multiplied since the war”, referring to “electronic warfare aimed at sowing fear and instability”.