5M Gmail passwords leak; Check if your email was also in the list
But this can be harmful for you if you have not changed your Google account password for very long time and your email/password is also in the list. In case you want to check whether your email was also leaked, you can try IsLeaked.com. Just enter your email address and check the result. If your email was included in the breach, change your password.
Always try to create strong passwords with the combination of characters and string. And the most important thing to note that never use same passwords for multiple online accounts. Use different passwords for different accounts. If you are afraid of forgetting passwords, you can try using password management tools.