navy

A Five-Euro Tracker. A 500-Million-Euro Warship. An Obvious Gap.

John Z Black Apr 21, 2026

Policy, Law & Governance #opsec #maritime-security #bluetooth #airtag #navy #physical-security #wef

A Dutch security researcher mailed a Bluetooth tracker hidden in a greeting card to a naval frigate and tracked it across the Mediterranean for 24 hours. The Dutch Navy banned battery-containing cards. That's the fix they landed on.