US sanctions Chinese cybersecurity firm for firewall hacks targeting critical infrastructure


The U.S. sanctioned a Chinese cybersecurity company and one of its employees for exploiting a zero-day vulnerability in Sophos firewalls to target U.S. organizations.

On Tuesday, the U.S. Treasury Department said Guan Tianfeng, an employee of Sichuan Silence, used the vulnerability to compromise approximately 81,000 firewalls in April 2020. The hacking campaign, detailed by Sophos in November, led to the compromise of more than 23,000 firewalls in the U.S., dozens of which were used at a government agency, and critical infrastructure companies. One of these was an energy company involved in drilling operations. The Treasury noted that the incident could have caused “significant loss in human life” if the attack had been successful.

Read more…
Source: TechCrunch


Sign up for our Newsletter


Related:

  • #StopRansomware: Interlock

    July 22, 2025

    Since September 2024, Interlock ransomware actors have impacted a wide range of businesses and critical infrastructure sectors in North America and Europe. These actors are opportunistic and financially motivated in nature and employ tactics to infiltrate and disrupt the victim’s ability to provide their essential services. Interlock actors leverage a double extortion model, in which they ...

  • Hackers are trying to steal passwords and sensitive data from users of Signal clone

    July 17, 2025

    Hackers are targeting a previously reported bug in the Signal clone app TeleMessage in an effort to steal users’ private data, according to security researchers and a U.S. government agency. TeleMessage, which earlier this year was revealed to be used by high-ranking officials in the Trump administration, already experienced at least one data breach in May. ...

  • US Army soldier pleads guilty to hacking telcos and extortion

    July 15, 2025

    Former U.S. Army soldier Cameron John Wagenius pleaded guilty to hacking telecommunication companies and attempting to extort them by threatening to release stolen files, the Department of Justice announced on Tuesday. According to the DOJ, Wagenius, who went online with the nickname “kiberphant0m,” conspired to defraud 10 victim companies by stealing their login credentials, using brute ...

  • ‘Pig butchering’ scams have stolen billions from people around the world.

    July 14, 2025

    At the beginning of 2025, panic about fraud and human trafficking erupted on Chinese social media. It started when a Chinese actor called Wang Xing was tricked into travelling to Thailand for an audition, where he was abducted by criminals and taken to a scam centre in Myanmar. Wang was reported missing and, within three days, ...

  • Episource is notifying millions of people that their health data was stolen

    July 14, 2025

    Medical billing giant Episource is notifying millions of people across the United States that their personal and health information was stolen in a cyberattack earlier this year. The breach affects more than 5.4 million people, according to a listing with the U.S. Department of Health and Human Services, making it one of the largest healthcare breaches ...

  • Trump administration to spend $1 billion on ‘offensive’ hacking operations

    July 14, 2025

    The Trump administration, through the Department of Defense, plans to spend $1 billion over the next four years on what it calls “offensive cyber operations.” The provision in Trump’s landmark One Big Beautiful Bill does not say what those “offensive cyber operations” are, nor what specific tools or software would qualify. The budget does note that ...