Category Archives: Aleksandr Ermakov

U.S. Offered $10M for Hacker Just Arrested by Russia

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In January 2022, KrebsOnSecurity identified a Russian man named Mikhail Matveev as “Wazawaka,” a cybercriminal who was deeply involved in the formation and operation of multiple ransomware groups. The U.S. government indicted Matveev as a top ransomware purveyor a year later, offering $10 million for information leading to his arrest. Last week, the Russian government reportedly arrested Matveev and charged him with creating malware used to extort companies. Continue reading U.S. Offered $10M for Hacker Just Arrested by Russia→

An Interview With the Target & Home Depot Hacker

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In December 2023, KrebsOnSecurity revealed the real-life identity of Rescator, the nickname used by a Russian cybercriminal who sold more than 100 million payment cards stolen from Target and Home Depot between 2013 and 2014. Moscow resident Mikhail Shefel, who confirmed using the Rescator identity in a recent interview, also admitted reaching out because he is broke and seeking publicity for several new money making schemes. Continue reading An Interview With the Target & Home Depot Hacker→

Who Stole 3.6M Tax Records from South Carolina?

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For nearly a dozen years, residents of South Carolina have been kept in the dark by state and federal investigators over who was responsible for hacking into the state’s revenue department in 2012 and stealing tax and bank account information for 3.6 million people. The answer may no longer be a mystery: KrebsOnSecurity found compelling clues suggesting the intrusion was carried out by the same Russian hacking crew that stole of millions of payment card records from big box retailers like Home Depot and Target in the years that followed. Continue reading Who Stole 3.6M Tax Records from South Carolina?→

Who is Alleged Medibank Hacker Aleksandr Ermakov?

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Authorities 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. Continue reading Who is Alleged Medibank Hacker Aleksandr Ermakov?→