“…Swedish authorities traced the source of the attack to an Advanced Persistent Threat (APT) group that has previously been linked to the Russian military intelligence agency, Spetsnaz Gru,” a source told AldriMer.no.During the ongoing attack, authorities in the Scandinavian country alerted NATO – the North Atlantic Treaty Organization – despite Sweden not being part of the alliance. AldriMer.no reported two separate warnings were issued and relayed to several NATO allies, including Norway and Denmark.
“The message was passed on to NATO either by Sweden’s National Defence Radio Establishment (Försvarets radioanstalt, FRA) or the Swedish Military Intelligence and Security Service (Militära underrättelse- och säkerhetstjänsten, MUST),” a senior NATO source told the publication.At the same time these warning were issued, the source also said NATO had independently detected that Russia instigated “electronic warfare activity” in the Baltic Sea region that was congesting air traffic communication channels. “NATO traced the signals and they led to a large radio tower in the Russian enclave of Kaliningrad, the south of Lithuania,” wrote the IBT. The national Computer Emergency Readiness Team (CERT) centers for Norway, Denmark and other neighboring countries declined to comment about the attack.