We have talked previously about what constitutes a strong password and how we go about creating one. But what happens if you use that password for every site you visit?
In October 2012, Adobe (makers of Photoshop amongst others) experienced an intrusion on a truly epic scale. Hackers stole 150 million passwords, so if you had an account with Adobe, the likelihood is that your password, username and email address are now public knowledge.
So now hackers have your Adobe password, and they will try that on common services like Gmail, Amazon, and many other sites that hold sensitive data on you.