Change this setting to stop Siri spilling your selfies!

A Siri-ous bug affecting iOS 9 could let a crook skip your passcode, and get at your photos… …and access your contacts, and send bogus messages in your name. Here’s how to fix it.

Google fixes an Android Lollipop lockscreen bypass bug – how bad was it?

The exploit worked by entering an extremely long string of characters into the password field while the camera is open, causing the device to crash and return to the homescreen.