Latest in A7

Image credit:

Apple explains how the iPhone's fingerprint sensor keeps your info secure

Share
Tweet
Share
Save

Sponsored Links

If you've ever wanted to know how the iPhone 5s' Touch ID fingerprint security works beyond a basic overview, you'll be glad to hear Apple has just delivered a motherlode of new details. An updated version of its iOS Security white paper (PDF) explains much of what happens to your finger data after you touch the sensor. In short, your information may be more hack-resistant than it seems at first glance. Each A7 chip has a unique secure space that neither the A7 nor Apple can read, and every authentication session is encrypted end-to-end. The company is also offering a deeper explanation of what it does with your fingerprint image, noting that the print only lasts in memory until it's turned into a decryption key. As we've known for a while, there are safeguards that wipe out that key after 48 hours of inactivity, a reboot or five failed login attempts. While the new insights will only have so much usefulness when developers can't use Touch ID for their own apps, they suggest that there's little to no chance of fingerprint theft or a large-scale data breach.

All products recommended by Engadget are selected by our editorial team, independent of our parent company. Some of our stories include affiliate links. If you buy something through one of these links, we may earn an affiliate commission.
Comment
Comments
Share
Tweet
Share
Save

Popular on Engadget

Engadget's Guide to Privacy

Engadget's Guide to Privacy

View
Google Chrome now offers better theme customization and tab grouping

Google Chrome now offers better theme customization and tab grouping

View
Leaked screenshots show how Apple's tracker tags might work

Leaked screenshots show how Apple's tracker tags might work

View
Tesla targets Nürburgring EV record next month

Tesla targets Nürburgring EV record next month

View
Mark Zuckerberg visited Donald Trump at the White House

Mark Zuckerberg visited Donald Trump at the White House

View

From around the web

Page 1Page 1ear iconeye iconFill 23text filevr