How will you know if your account has been hacked?

Spot unusual behaviour. The clearest sign that youve been hacked is when something has changed. You might not be able to access your Google account using your regular username and password or there may have been a suspicious purchases charged to one of your bank accounts.

What are the possible causes of your accounts getting hacked?

The 4 most likely reasons you were hackedPicking your pocket. By far, the vast majority of hacking and malware is for quick financial gain. Pummeling you with adware and spam. Stealing intellectual property. Turning you into a bot client. The malign mystery of malware.5 Feb 2013