Yesterday you might have read about Facebook founder and user Mark Zuckerberg’s social media accounts getting “hacked.” Hacked is maybe not the right word here, since many people believe Zuck’s password was among the 117 million leaked LinkedIn passwords recently posted online. If this is true, it means that Zuckerberg used the same password for multiple websites, allowing the damage done by the LinkedIn hack to spread into other areas. If you have or want a job, chances are you also have a LinkedIn account, and if you had one back in 2012, it was probably one of the compromised accounts from that incident. Do you still use that password anywhere? Our 9 step password security checklist will help you secure your accounts, whether you’re a billionaire CEO or just someone who likes to post funny cat videos.