Want to know what terms to avoid?
Here are the top ten most commonly used passwords (see the full list of the top 20 in the charts below):
An attack that exposed 10,000 Hotmail, MSN and Live.com passwords yielded similar findings.
According to a researcher who examined the leaked data, "123456" was the most frequently used password, appearing 64 times in total.
Forty-two percent of the passwords used lowercase letters from "a to z"; only 6 percent mixed alpha-numeric and other characters.
Many of the top 20 passwords used were Spanish names, such as Alejandra and Alberto, suggesting that the victims were in Spanish-speaking communities. Nearly 2,000 of the passwords were only six characters long. The longest password was 30 characters -- lafaroleratropezoooooooooooooo.
The full list of Imperva's top 20 most common passwords has some surprising contenders: