Apple released iOS 9 last week, and already more than 50% of iOS users have updated to the latest version. The bad news is, they are all vulnerable to security flaw in the latest iOS 9.
Reports say that this security flaw would let users bypass your lockscreen and access private information through Siri. To try out yourself, take any device running iOS 9 using PIN and type in a wrong one four times. On the fifth time, type only three numbers, hold the home button to open Siri while you type the fourth number.
Doing this will let you open the clock app, which will then let you access contacts and photos without actually unlocking the device. You can “remove” this glitch by disabling access to Siri while the phone is locked, but it is still quite the security flaw.
This means we’re probably going to see a new iOS 9 update pretty soon.