According to statista.com, the number of internet users worldwide was 3.58 billion. How many different passwords a normal user would use? Probably not more than 3, I would say... Now, the interesting part is coming: we hear everyday about hackers stealing user credentials from different servers. In fact, somebody managed to collect half a billion credentials and to put them on a database which you can interrogate using an online interface (link to the online search tool). This means that 1 out of 20 passwords are now available for everybody to use.
Scary, isn't it?
As an example, I searched for the usage of the "1234" in the pwned passwords. Can you believe that a trivial password like this was used 1.1 million times?
Actually, I even checked for one of the passwords that I'm reusing on different unsecure websites, and found out that it was found 2 times in breach data.
Just remember, it's always a good habit to periodically change your passwords and never use trivial or words out of dictionaries. By the way, neither the name of your first pet or your first girlfriend is also not a good password (40.000 people are using "oscar" and 60.000 people are using "sophie" as passwords).
