For nearly 20 years, the secret code to authorize launching U.S. nuclear missiles, and starting World War III, was terrifyingly simple and even noted down on a checklist. The Permissive Action Link ...

A credit card with a constantly changing security code is being launched in an attempt to combat fraud. 英国将推出一种具有不断变化的安全码的信用卡，以打击诈骗行为。 The three numbers on the back of the card will be replaced by a ...