Security flaw!

This app is on my IPad. I had a phone stolen and wanted to see what happened to hangouts when I changed the password. On my new phone Hangouts booted me until I put in the new password. On the Google voice app for Apple. It is still signed in so if someone stole your device and you change the password they can still see everything you do and use your number.

baicrces about Google Voice, v1.9