Google says that it blocked all of the malicious emails in the latest attack, but because it believed users had been targeted by a government-backed gang it warned them of the attempted hack. At some point some govt backed entity probably will try to send you something.' In a tweet, Huntley posted: 'If you are an activist/journalist/government official or work in NatSec, this warning honestly shouldn't be a surprise. Huntley explained to high-risk users that it was inevitable someone would attempt to compromise their account at some point. Perhaps most infamously, APT28 was responsible for hacking into Hillary Clinton's presidential campaign and the DNC. Shane Huntley, director of Google's Threat Analysis Group (TAG), confirmed on Twitter that the hacking group which prompted the large number of alerts was APT28 (also known as Fancy Bear), which has been behind a spate of high profile attacks in recent years. Google's announcement comes in the wake of the technology giant displaying alerts to approximately 14,000 users that their accounts had been targeted by Russia-backed hackers. Meanwhile, existing Google authentication services which are less secure than a hardware key will no longer work. Users who enable Google Advanced Protection (APP) and use a hardware security key, will need both their password and the physical key to log into their account.

Google says it is sending out the free Titan two-factor authentication (2FA) security keys - that provide a phishing-resistant layer of protection - to groups such as politicians, journalists, and human rights activists, who are considered to be particularly at risk from state-sponsored attackers.

10,000 high-risk users are being provided with free hardware security keys by Google, with the aim of better protecting their accounts from hackers.

Google security key