Gmail confidential mode
I feel that many of these pseudo-secure, proprietary enhancements to email create a false sense of security for non-tech-savvy users. Given the smoke-and-mirrors presentation of this as a way to "secure your email^tm" and the plethora of recent info leaks, i am sure some poor c-level exec will get caught inadvertently sharing something with an external recipient thinking that it will disappear in a few days, but then find themselves in a middle of a publicity nightmare.In my utopia world, i'd love to see basics of information privacy and personal security be taught in schools akin to Driver's Ed or Sex Ed classes.