465k patients told to visit doctor to patch critical pacemaker vulnerability – Ars Technica

https://arstechnica.com/information-technology/2017/08/465k-patients-need-a-firmware-update-to-prevent-serious-pacemaker-hacks/

Hacker Spoofs Cell Phone Tower to Intercept Calls

https://www.wired.com/2010/07/intercepting-cell-phone-calls/

Security Flaw In Common Keycard Locks Exploited In String Of Hotel Room Break-Ins

https://www.forbes.com/sites/andygreenberg/2012/11/26/security-flaw-in-common-keycard-locks-exploited-in-string-of-hotel-room-break-ins/