how did someone in my contact list magically get a picture attached to it?

[AC Question]

I noticed a contact photo, that I did not assign, mysteriously attached itself to her info. Is this a network sharing thing? Want to make sure no one is hacking my phone!

 

[Crashdamage]

re:

Nothing to worry about. She just added the photo to her Google profile and it synced to your phone. Relax.

Android since v1.0. Linux since 2001.