From articles first sentance: " lot about someone from their eyes. They can indicate how tired you are, the type of mood you’re in, and potentially provide clu

From articles first sentance: " lot about someone from their eyes. They can indicate how tired you are, the type of mood you’re in, and potentially provide clues about health problems. But your eyes could also leak more secretive information: your passwords, PINs, and messages you type." Do you want that shared with advertisers? With your health care provider? The article isn't about the technology, it is about sharing the data.