At this point, we all know the best passwords are the ones with a random mix of capital letters, numbers, and punctuation. But admit it . . . we ALL have at least one password that's just the name of the dog we grew up with.

Google just released the results of a study on the most hackable passwords. Here's their list of the 10 worst things to use for a password . . .

1. The names of your pets.

2. Important dates, like wedding anniversaries.

3. A family member's birthday.

4. Your child's name.

5. Another family member's name.

6. Your hometown.

7. Your favorite holiday.

8. Something related to your favorite sports team.

9. Your significant other's name.

10. The word "password."

The study also found about HALF of people have told other people their passwords . . . and 3% leave their passwords written on a post-it note on their desk.