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The cybercriminals behind DeadBolt primarily target NAS devices. QNAP systems are the main targets, though in February the group attacked NAS devices from Asustor, a subsidiary of systems maker Asus, said analysts with cybersecurity firm Trend Micro.

Connected cars provide plenty to entice threat actors, with more than 400 million predicted to be on the roads globally by 2025. Trend Micro announced VicOne, dedicated security for the electric vehicles and connected cars of today and tomorrow.

The FBI in April warned that BlackCat affiliates use previously compromised user credentials to gain initial access to a victim network, but didn't identify Exchange flaws as a point of entry. However, researchers at Trend Micro at the time reported BlackCat affiliates had used the Exchange CVE-2021-31207 flaw initial entry and to install a web shell on the server for remote access.

Survey results from Trend Micro indicate that, when it comes to organizations understanding their attack surfaces, most don't.

More processes could be terminated by the updated Cuba ransomware variant prior to file encryption, such as MySQL, MS Exchange, and Outlook, while additional directories and file types have been added to the ransomware's exclusion list, a Trend Micro report revealed.