Handheld quantum key system makes mobile transactions more secure

To meet the increasing popularity of using mobile phone apps to pay for purchases, researchers from the University of Oxford in the UK have developed a method for transmitting quantum keys at a high enough data rate to ensure data security while compensating for moving hands.

The handheld device, which the researchers say could be miniaturised for use in a mobile device, will help ensure consumers’ personal financial information is safe from cyber-attacks.