If you're worried about the security of your financial transactions, you only need to think back to Christmas 2013 to remember why. That's when cybercriminals breached the retailer Target's computer system, exposing tens of millions of people's personal information to hackers.
There have been countless hacks since then. So, advances in payments like the EMV cards with computer chips are a welcome change. Rather than storing all your information on the cards, making them vulnerable to attack, they hide each of your transactions behind one number.
Which is similar to what Apple is now doing with its digital wallet, Apple Pay. To use it, you just place your phone on a card reader, or tap your Apple smartwatch twice.
To keep your transactions secure, Apple doesn't collect your personal information. Instead, it creates a unique code for each card, the Device Account Number (DAN) that's saved onto a secure disk. (Google uses a similar system with its Android Pay.)