Data-privacyA security flaw has been discovered in wireless mouses that permits unauthorized sources to remotely “mousejack” the devices.

Two hackers from Bastille, a security firm, were able to take control of a CNET reporter’s wireless mouse and computer with an antenna and malicious code. The antenna replicates a wireless mouse signal, and pairing with a wireless USB dongle. From there, the two hackers were able to completely access the computer.

The antenna itself is easy to purchase, but this method of hacking is still difficult. Hackers have to be within 200 meters, or around 656 feet, to access the device. So, most wireless mouses are safe while at home, but may be vulnerable in public places.

Bastille conducted their initial attempt at hacking wireless mouses in November, and has since notified major manufacturers of these vulnerabilities.