In recent years we've seen malware that targets webcams and microphones in an effort to secretly record what a person says and does.
Even the NSA has developed code that remotely switches on a person's webcam.
But things are different when it comes to Mac malware, because each Apple laptop has a hard-wired light indicator that tells the user when it's in use. At least you know you're being watched.
That could change with a new kind of webcam piggyback attack, according to research by Synack's Patrick Wardle, which he will present Thursday at the Virus Bulletin conference.