Dexcom's AI-data terms update locks users out, sparks backlash

Dexcom spent this week trying to walk back a mandatory terms update that briefly left type 1 diabetics staring at an accept-or-uninstall dialog instead of their blood sugar numbers.

The new terms, reported on October 16, 2026 by Inside Health Policy, "adjust provisions on use of data for artificial intelligence features, mandatory arbitration requirements and class action waivers." According to reporting at Attack of the Fanboy, one Dexcom user opened the app to check her glucose and found the reading blocked behind a prompt with just two buttons, 'CONTINUE' and 'View Agreements,' and the line "Please uninstall app if you don't agree."

Privacy researcher Casey Fiesler reposted the alert on Instagram and called it "the most coercive [expletive] I've ever seen." Another user pointed at Section 1.3 of Dexcom's contract, which says patients have 30 days to reject modifications by emailing the legal department, arguing the pop-up "is forcing an immediate compliance ultimatum on our screens right now, well before those 30 days are up."

Dexcom's reply, posted to social media, says its privacy policy has not changed and that it "does not sell private data to third parties without consent." The company frames the update as "language regarding the use of data for AI-powered features, updates to how users may use the app, and revisions to our arbitration and dispute resolution provisions." The current public terms page still carries a January 26, 2023 effective date, so what users accepted in the app this week has not yet been reconciled with what the website shows.

The timing is awkward: a class action over an alleged ShinyHunters data breach was filed against Dexcom on October 13, 2026, three days before the terms backlash broke.