US offers $3m reward for arrest of Russian hacker Evgeniy Bogachev

The US has offered a $3m (£1.94m) reward for information on a Russian hacker, the highest the US authorities have ever offered in a cybercrime case.

Evgeniy Bogachev was charged last year in the US with being behind a major cybercrime operation that allegedly stole more than $100m (£64.7m).

He was last seen in Russia, where he is believed to remain at large.

Arresting him may be difficult, as the US does not have an extradition treaty with Russia.

Mr Bogachev, also known as "lucky12345" and "slavik", is accused of running the GameOver Zeus attack network, thought to have infected more than one million computers.

Victims were tricked into downloading malware - malicious software - which then searched specifically for financial information.