By some estimates as many as 1 in 4 people claim to have had one of their online accounts hacked.A mobile app (currently Android, with iOS to follow soon) that promises to monitor an array of online accounts for suspicious login or attempted login activity. It is called Logdog and it works in part, by building a profile of your usual log in parameters, such as sign-in locations, times, and device types, and then alerts you of any suspicious activity. It’s then up to you whether or not to change the password for that particular account, ignore the attempt or, in the case of a false-positive, tell LogDog that it was in fact you.
Technically the way the app works is that you give it permission to log in on your behalf to the accounts that you wish to monitor — Facebook, Dropbox, Gmail, Evernote, Yahoo!, and Twitter are supported — and from there it continually monitors those accounts via their own respective activity logs for anything suspicious. - See more at: http://www.ictrepublic.com/2015/07/a-mobile-app-that-keeps-all-your.html#sthash.HXotPYDD.dpuf