Pictured: TurboTax headquarters. The Mount Locker ransomware group is reportedly targeting victims' files that feature extensions associated with TurboTax software from Intuit. (Coolcaesar at en.wikipedia, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons)

Ransomware actors are targeting tax software files in a bid to dig up highly sensitive data and increase leverage over their victims, including small businesses whose efforts to be tax-compliant could be seriously disrupted.

Late last week, security researcher Vitali Kremez reportedly revealed to BleepingComputer that the recently discovered ransomware program Mount Locker has been targeting files featuring extensions associated with TurboTax software. And just last month, Sophos separately reported that LockBit ransomware actors have been using PowerShell tools to look for tax software on breached networks in order to find juicy targets for potential extortion.

Please register to continue.

Already registered? Log in.

Once you register, you'll receive:

  • News analysis

    The context and insight you need to stay abreast of the most important developments in cybersecurity. CISO and practitioner perspectives; strategy and tactics; solutions and innovation; policy and regulation.

  • Archives

    Unlimited access to nearly 20 years of SC Media industry analysis and news-you-can-use.

  • Daily Newswire

    SC Media’s essential morning briefing for cybersecurity professionals.

  • Learning Express

    One-click access to our extensive program of virtual events, with convenient calendar reminders and ability to earn CISSP credits.