The post delves into concerns that the new "Recall" feature planned for Windows (on upcoming Copilot+ PCs) is "a security and privacy nightmare."
Copilot Recall will be enabled by default and will capture frequent screenshots, or "snapshots," of a user's activity and store them in a local database tied to the user account. The potential for exposure of personal and sensitive data through the new feature has alarmed security and privacy advocates and even sparked a UK inquiry into the issue. In a long Mastodon thread on the new feature, Windows security researcher Kevin Beaumont wrote, "I'm not being hyperbolic when I say this is the dumbest cybersecurity move in a decade. Good luck to my parents safely using their PC."
In a blog post on Recall security and privacy, Microsoft said that processing and storage are done only on the local device and encrypted, but even Microsoft's own explanations raise concerns: "Note that Recall does not perform content moderation. It will not hide information such as passwords or financial account numbers. That data may be in snapshots that are stored on your device, especially when sites do not follow standard internet protocols like cloaking password entry." Security and privacy advocates take issue with assertions that the data is stored securely on the local device. If someone has a user's password or if a court orders that data be turned over for legal or law enforcement purposes, the amount of data exposed could be much greater with Recall than would otherwise be exposed... And hackers, malware and infostealers will have access to vastly more data than they would without Recall.
Beaumont said the screenshots are stored in a SQLite database, "and you can access it as the user including programmatically. It 100% does not need physical access and can be stolen.... Recall enables threat actors to automate scraping everything you've ever looked at within seconds."
Beaumont's LinkedIn profile and blog say that starting in 2020 he worked at Microsoft for nearly a year as a senior threat intelligence analyst. And now Beaumont's Mastodon post is also raising other concerns (according to Cyble's blog post):
"Sensitive data deleted by users will still be saved in Recall screenshots... 'If you or a friend use disappearing messages in WhatsApp, Signal etc, it is recorded regardless.'"
"Beaumont also questioned Microsoft's assertion that all this is done locally."
The blog post also notes that Leslie Carhart, Director of Incident Response at Dragos, had this reaction to Beaumont's post. "The outrage and disbelief are warranted."
Read more of this story at Slashdot.
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