IT Security FAQ 3: What password-managers are good? Why should you use one?
People tend to use the same password on many sites because it’s hard to remember multiple passwords in your head for every service you are using online. The problem is, that if someone hacks one of the services you are using and gain access to your password, the hacker would also be able to hack all of your other accounts if you use the same password everywhere. How to prevent this while also keeping track of your passwords? Use a password manager!