Encode Hidden Messages in Your Facebook Pics

And the countdown to "outrage" over this browser add-on begins in 3...2...1. I'm sure Facebook will simply tweak its image compression algorithm to kill this off but it will be interesting to see how long that takes. With the extension, anyone — you, your sister, a terrorist — could share messages hidden in JPEG images uploaded to Facebook without the prying eyes of the company, the government or anyone else noticing or figuring out what the messages say. The only way to unlock them is through a password you create.