Google's Threat Analysis Group (TAG) on Thursday said it's tracking more than 270 government-backed threat actors from more than 50 countries, adding it has approximately sent 50,000 alerts of state-sponsored phishing or malware attempts to customers since the start of 2021.
The warnings mark a 33% increase from 2020, the internet giant said, with the spike largely stemming from "blocking an unusually large campaign from a Russian actor known as APT28 or Fancy Bear."
Additionally, Google said it disrupted a number of campaigns mounted by an Iranian state-sponsored attacker group tracked as APT35 (aka Charming Kitten, Phosphorous, or Newscaster), including a sophisticated social engineering attack dubbed "Operation SpoofedScholars" aimed at think tanks, journalists, and professors with the goal of soliciting sensitive information by masquerading as scholars with the University of London's School of Oriental and African Studies (SOAS).
Details of the attack were first publicly documented by enterprise security firm Proofpoint in July 2021.
The threat actor is also said to have impersonated policy officials by sending "non-malicious first contact email messages" modeled around the Munich Security and Think-20 (T20) Italy conferences as part of a phishing campaign to lure high-profile individuals into visiting rogue websites.
"For years, this group has hijacked accounts, deployed malware, and used novel techniques to conduct espionage aligned with the interests of the Iranian government," Google TAG's Ajax Bash said.