Just as the scandal over alleged Russian hacking of the US Democratic Party erupted in June, police in Russia were rounding up a group known as Lurk.
In the underground world of Russian hackers, a shadowland of anonymous internet forums where users exchange the latest malware, Lurk was legendary.
The group, active since 2011, was accused of stealing some three billion rubles (US$47 million) from Russian banks and aspiring hackers were keen to join.
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Then more than 50 members, most of whom hailed from the Urals city of Ekaterinburg, were arrested in a sweeping raid that entailed 86 probes in 15 regions across the vast country.
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But despite the eye-catching operation, the crackdown on Lurk only touched the tip of the iceberg of a lucrative criminal industry.
An employee walking behind a glass wall with coding symbols at the headquarters of Internet security giant Kaspersky in Moscow. Photo: AFP