Automatic teller machines will soon be able to "demagnetise" cards in the event of a machine jam to prevent thieves from using them for speedy withdrawals, Standard Bank said on Friday.    From Wordnik.com.  [ANC Daily News Briefing] Reference

"A special microchip instructs the machine to demagnetise the jammed card's magnetic strip, rendering the card useless.".    From Wordnik.com.  [ANC Daily News Briefing] Reference

Cut the wires of the operator, break his battery, demagnetise his needle; by this means you certainly sever his connection with the world; but, inasmuch as these are real instruments, their destruction does not touch the man who uses them.    From Wordnik.com.  [Fragments of science, V. 1-2] Reference