Last year, a white hat hacker developed a cheap Arduino-based device that looked and functioned just like a generic USB mobile charger, but covertly logged, decrypted and reported back all keystrokes from Microsoft wireless keyboards. Dubbed KeySweeper, the device included a web-based tool for live keystroke monitoring and was capable of sending SMS alerts for typed keystrokes, usernames, or URLs,
![Beware of Fake USB Chargers that Wirelessly Record Everything You Type, FBI warns](https://cdn-ak-scissors.b.st-hatena.com/image/square/1c519d9ec8971e29ad5fd9416215ac35c2372bae/height=288;version=1;width=512/https%3A%2F%2Fthehackernews.com%2Fimages%2F-Kfa31m52sAE%2FV0SMoP3bOiI%2FAAAAAAAAoRI%2FLDu-P3GShsMaby8IrsQ8tg9NjDOGPyctgCLcB%2Fs728-e365%2Fkeylogger-fbi.png)