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bobble_bob
The researchers tested a range of second-hand Android devices running Android versions from Android 2.3 to Android 4.3 and found that in all cases they were able to recover account tokens � which are used to authenticate you once a password is entered the first time � from service providers such as Google, Facebook and WhatsApp. In a staggering 80 percent of cases, they were able to recover the master token.
https://www.androidpit.com/why-a-factory-reset-doesn...
Must admit ive sold phones before after doing a basic factory reset and not thought anything of it. There are probably thousands of 2nd hand phones for sale all over the country, wonder how many are at risk?
Edited by bobble_bob (Thu 22-Feb-18 16:19:06)