UK cyber warriors have been locked in a “geek battle” to protect President Zelensky from devastating attacks targeting key databases and infrastructure.

The hidden enemy forces include a hacking group known as TURLA - considered Putin’s stealthiest cyber force - which once targeted Britney Spears Instagram account.

They are focused on targeting “high value targets” to gain crucial and compromising information.

Their hacks were exposed by allied agents on at least two occasions in a major blow to Russia’s war effort, officials revealed.

Details emerged as Britain pledged a £6million scheme to bolster Kyiv’s cyber defences – by hiring private contractors.

Foreign Secretary James Cleverly said: “We are drawing on Britain’s world-leading expertise to support Ukraine’s cyber defences.

“Together, we will ensure that the Kremlin is defeated in every sphere – on land, in the air and in cyber space.”

Russian hacker groups including the FSB-linked Armageddon and GRU-linked ATPU28, also known as Fancy Bear, have also been targeting Ukraine.

But it is not only Moscow unleashing attacks.

China, Iran and Belarus have also launched digital blitzes since Putin triggered his bloodbath invasion on Feb 24.