There are two important security breaches that you should be aware of: Dell and Time Warner.
Someone hacked Dell’s customer database. It is being used to contact Dell customers about bogus tech support problems. The callers know a lot about your set up, if you have a Dell computer. As with other scams, it is important to remember that no one from Dell is calling you about some problem with your computer. If anyone calls you to tell you that you have a problem with your computer, just hang up. Don’t engage, don’t ask questions, just hang up. You can read about it here.
The Time Warner hack resulted in stolen passwords. You can read about it here. If you have an online account with Time Warner or you have a Time Warner/Roadrunner email account you should immediately change your password on the account.