At the beginning of this year, the company MalwareBytes found a malware, called FruitFly, dedicated to spying on Apple computers and that has been active for several years undetected.
Among other features, this malware is capable of capturing images through the computer's camera, obtaining screenshots, simulating mouse clicks and typing, as well as notifying the attacker when the victim is online.
In the investigation conducted by Patrick Wardle, a former NSA analyst, 400 infected computers were identified. These Macs had been connected to a server that had previously been used by cybercriminals. It is estimated that these 400 computers are only a small number of the total that remain to be identified.