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My android is being hacked by my ex

AUTOTRAIN

Lurker
Hi Everyone, I am new here. Nice to meet you all. I am in need of help and hoping some of you can give me some advices on what to do. Here is the story

I am very convince that my Android phone is being hacked by my ex g/f. Here are the reason why. About 3 week ago she asked me to help her sign into her yahoo email account on my device. She said her phone is acting out. she give me her user ID and password. I open my browser and tried to sign in for her.At the same time she was sitting next to me and she is also trying to sign in with her phone.( Android) . After 20 min or so she was able to sign in but not me. I didn't pay much attention at the time but few days later I notice strange thing on my phone such as its turn on and off itself. My personal setting has changed. Then she started asking me about who was I Texting last night or why did I place a call to. She seemed to know the time line as well as the conversations. She also know where I am anytime of the day. I want you guys opinion before I confront her.
 
Welcome to AF!

Head to Settings - Apps - All. Does anything appear there that doesn't look like it was preinstalled on the phone or downloaded and installed yourself? Anything that looks nefarious? If yes, uninstall.

Your best bet would probably be to factory reset, backing up only what you need (contacts, SMS etc) that will wipe the handset clean of any settings and apps you/she has installed.
 
Settings/Accounts.

Remove any account that is not your primary google account or related to a service or email that is yours.

Settings/Security/Device administrators

Temporarily disable them all.

As El presidente suggested, go over your apps and remove any apps that seem odd to you.

Pay close attention to app names that match any device administrator name you temporarily disabled above and remove them for the time being.

Turn off your phone.

On a computer, log into the google account associated to your android phone and change your master password. LOOK OVER YOUR RECOVERY SETTINGS - make sure the person in question hasnt added their email or phone number as a password recovery option.

Save your account changes, log out of the account and then log back in with your new password, that should in theory render any previous session of your account on any computer invalid.

Pull the battery on your phone, put it back in and turn on your phone.

Upon boot the phone should ask for your new password.

Be careful who uses your phone or knows your passwords, and dont use WIFI at her house OR allow her to use WIFI at yours.

If she has your wifi password, change it.
 
Presidente to the rescue again. Android is linux and therefore nothing can be done as we do not have root (administrator) level powers under normal conditions to the operating system. So this means anything that has been done can be easily reversed by simply uninstalling any suspicious apps. If you can't find the app making the problem, the best suggestion has been noted, factory reset.
 
Also change your WiFi password, and disable WPS on the router, the apparent 8 digit code is parsed as 2 codes of 4 digits, making it very easily cracked.
 
Nooo i WANT one! Im sick of girls puttin batterys in tv remote the same direction! Then sHaKiNg it when it doesnt work grr. Give me a psycho geek anyday
 
Redheads sure all a lot of trouble

As a fully signed-up member of Gingers Anonymous, I resemble that remark! :D

@OP: I can't see you signing in to your ex's Yahoo! account causing malware to be installed on the device. However, to avoid any doubt, a factory reset is a quick and easy way to make sure as advised by EP.
 
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