Latest cybersecurity reporting from selected sources.

A Ukrainian man indicted in 2012 for conspiring with a prolific hacking group to steal tens of millions of dollars from U.S. businesses was arrested in Italy and is now in custody in the United States, KrebsOnSecurity has learned. Sources close to the investigation say Yuriy Igorevich Rybtsov, a 41-year-old from the Russia-controlled city of Donetsk, Ukraine, was previously referenced in U.S. federal charging documents only by his online handle "MrICQ." According to a 13-year-old indictment filed by prosecutors in Nebraska, MrICQ was a developer for a cybercrime group known as "Jabber Zeus."

Suspects Tied to April Ransomware Attacks Against Retailers M&S, Co-Op, HarrodsThe U.K.'s National Crime Agency on Thursday arrested in England four suspected members of the Scattered Spider cybercrime collective, as part of an ongoing investigation into major, disruptive hack attacks in April against major retailers Marks & Spencer, the Co-Op and Harrods.

The FBI joined authorities across Europe last week in seizing domain names for Cracked and Nulled, English-language cybercrime forums with millions of users that trafficked in stolen data, hacking tools and malware. An investigation into the history of these communities shows their apparent co-founders quite openly operate an Internet service provider and a pair of e-commerce platforms catering to buyers and sellers on both forums.