Google engineer Felix Krause has revealed that the iPhone camera can secretly take pictures of its owners without their knowledge.
He wrote in his blog that "iOS users often grant camera access to an app soon after they download it in order to add an avatar or send a photo."
"These apps, like a messaging app or any news-feed-based app, can easily track the users face, take pictures, or live stream the front and back camera, without the user's consent," Krause said.
Krause said that he had already briefed Apple on all this and asked it to develop relevant notifications about the camera.
According to him, "the only real safe way to protect yourself is using camera covers," something that Krause said is used by "many people," including Facebook founder Mark Zuckerberg.