Brian Krebbs

In-depth security news and investigation
  1. A new data leak that appears to have come from one of China's top private cybersecurity firms provides a rare glimpse into the commercial side of China's many state-sponsored hacking groups. Experts say the leak illustrates how Chinese government agencies increasingly are contracting out foreign espionage campaigns to the nation's burgeoning and highly competitive cybersecurity industry.
  2. U.S. and U.K. authorities have seized the darknet websites run by LockBit, a prolific and destructive ransomware group that has claimed more than 2,000 victims worldwide and extorted over $120 million in payments. Instead of listing data stolen from ransomware victims who didn't pay, LockBit's victim shaming website now offers free recovery tools, as well as news about arrests and criminal charges involving LockBit affiliates.
  3. The Minnesota-based Internet provider U.S. Internet Corp. has a business unit called Securence, which specializes in providing filtered, secure email services to businesses, educational institutions and government agencies worldwide. But until it was notified last week, U.S. Internet was publishing more than a decade's worth of its internal email -- and that of thousands of Securence clients -- in plain text out on the Internet and just a click away for anyone with a Web browser.
  4. Microsoft Corp. today pushed software updates to plug more than 70 security holes in its Windows operating systems and related products, including two zero-day vulnerabilities that are already being exploited in active attacks.
  5. Until earlier this week, the support website for networking equipment vendor Juniper Networks was exposing potentially sensitive information tied to customer products, including the exact devices each customer bought, as well as each device's warranty status, service contracts and serial numbers. Juniper said it has since fixed the problem, and that the inadvertent data exposure stemmed from a recent upgrade to its support portal.
  6. In 2021, the exclusive Russian cybercrime forum Mazafaka was hacked. The leaked user database shows one of the forum's founders was an attorney who advised Russia's top hackers on the legal risks of their work, and what to do if they got caught. A review of this user's hacker identities shows that during his time on the forums he served as an officer in the special forces of the GRU, the foreign military intelligence agency of the Russian Federation.
  7. Three Americans were charged this week with stealing more than $400 million in a November 2022 SIM-swapping attack. The U.S. government did not name the victim organization, but there is every indication that the money was stolen from the now-defunct cryptocurrency exchange FTX, which had just filed for bankruptcy on that same day.
  8. On Jan. 9, 2024, U.S. authorities arrested a 19-year-old Florida man charged with wire fraud, aggravated identity theft, and conspiring with others to use SIM-swapping to steal cryptocurrency. Sources close to the investigation tell KrebsOnSecurity the accused was a key member of a criminal hacking group blamed for a string of cyber intrusions at major U.S. technology companies during the summer of 2022.
  9. 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.
  10. Google continues to struggle with cybercriminals running malicious ads on its search platform to trick people into downloading booby-trapped copies of popular free software applications. The malicious ads, which appear above organic search results and often precede links to legitimate sources of the same software, can make searching for software on Google a dicey affair.

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