The EFF has a good guide and sells stickers which do not leave residue and are thin enough to allow a laptop to close normally. They are also small enough to us

The EFF has a good guide and sells stickers which do not leave residue and are thin enough to allow a laptop to close normally. They are also small enough to use on a phones front facing camera. https://www.eff.org/deeplinks/2013/04/how-protect-against-laptop-webcam-hacking https://www.eff.org/deeplinks/2013/04/how-protect-against-la... https://supporters.eff.org/shop/laptop-camera-cover-set https://supporters.eff.org/shop/laptop-camera-cover-set