In the latest part of his ongoing research into the gizmos that criminal hackers are using to 'skim' the magnetic stripe of bank cards – as well as watch the user as s/he enters their PIN – security ...

It's intentional: not slow, but jittery. The jitter is to reduce the probability of simple ATM skimming. Firstly, it's useful to understand how simple ATM skimming works. They use gadgets that can be ...