Protect your password â€“ Every time you register on a Web site you are required to create a password. Do not use readily available biographical information as a password, says Cathy Avgiris, senior vice president and general manager of communications and data services at Comcast. In other words, avoid using your birth date, birth city, motherâ€™s maiden name, or any information that can be found in public records. Also donâ€™t use the same password everywhere. Not every site you visit, will actually keep your password safe, and once someone discovers it, all of your information is up for grabs.