TENAFLY, N.J. – We?ve all had or seen server room doors protected by combination locks. Most safes these days are protected by electronic keypads, like the ones used to safeguard on-site backup tapes. Using digital keypads, one?s fingers transfer a minute amount of heat to each key pressed.
This heat can be read by thermal imaging cameras for a short period of time after the keys have been pressed.
These cameras detect and display a large swath of the infrared (IR) spectrum. So, if you are using a keypad to access a door or a safe you are at risk.
To read the rest of this story, click on SecurityCurrent.Com
