Choose unique passwords of at least 12 characters.
From the user’s perspective, the key to protecting data is choosing strong passwords. Think about it: access to almost all our data online is protected by our passwords.
Passwords are the most powerful security measure on the user’s side.
Criminal hackers exploit users’ laziness and carelessness. It’s sometimes easier for them to guess passwords to gain access to lucrative data than to try attacking a solid IT security system.
Strong passwords contain at least 12 characters (even longer is even better) and include numbers, upper and lower case letters and special characters.
And it is very important to have unique passwords. Passwords should never be used twice.
Use a tool to manage your passwords, like LastPass, Dashlane or KeePass.
Find more information here: Sing your password.