
Using a Weak Password
Avoid simple names or words you can find in a dictionary, even with numbers tacked on the end. Instead, mix upper- and lower-case letters, numbers, and symbols. A password should have at least eight characters. One good technique is to insert numbers or symbols in the middle of a word, such as this variant on the word "houses": hO27usEs!
Leaving Your Full Birth Date in Your Profile
It's an ideal target for identity thieves, who could use it to obtain more information...