A vulnerability in inexpensive wireless keyboards lets hackers steal private data, Bastille reported this week. The vulnerability lets hackers use a new attack the firm dubbed "KeySniffer" to eavesdrop on and capture every keystroke typed from up to 250 feet away. The stolen data is rendered in clear text. It lets hackers search for victims' credit card information, bank account usernames and passwords, answers to security questions, network access passwords, and any data typed into a document or email.