Well this is kind of shocking. Of course your physical fingerprint will remain on most things you touch, but on keypads your finger depress of the button could leave a heat signature for “over a minute” and allow someone using thermal imaging to see what numbers you pressed!
A few days ago I was able to get my fingers on, and under, an infrared camera. I had already heard before that the thermal signature of fingerprints is visible for quite some time — but what surprised me was that we were still able to see them for over a minute…
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — Zenefits founder Parker Conrad takes another crack at HR onboarding
Wearables — Do a dry fit
Electronics — Working with sensitive circuits?
Biohacking — After-Sight : Raspberry Pi Wearable Vision Assistance
No comments yet.
Sorry, the comment form is closed at this time.