Mikhail Borisovich Shefel

December 14, 2023

Ten Years Later, New Clues in the Target Breach

This post was originally published on this siteOn Dec. 18, 2013, KrebsOnSecurity broke the news that U.S. retail giant Target was battling a wide-ranging computer intrusion that compromised more than 40 million customer payment cards over the previous month. The malware used in the Target breach included the text string “Rescator,” which also was the handle chosen by the cybercriminal who was selling all of the cards stolen from Target customers. Ten years later, KrebsOnSecurity has uncovered new clues about the real-life identity of Rescator. Rescator, advertising a new batch of cards stolen in a 2014 breach at P.F. Chang’s. […]
January 26, 2024

Who is Alleged Medibank Hacker Aleksandr Ermakov?

This post was originally published on this siteAuthorities in Australia, the United Kingdom and the United States this week levied financial sanctions against a Russian man accused of stealing data on nearly 10 million customers of the Australian health insurance giant Medibank. 33-year-old Aleksandr Ermakov allegedly stole and leaked the Medibank data while working with one of Russia’s most destructive ransomware groups, but little more is shared about the accused. Here’s a closer look at the activities of Mr. Ermakov’s alleged hacker handles. Aleksandr Ermakov, 33, of Russia. Image: Australian Department of Foreign Affairs and Trade. The allegations against Ermakov […]