Certified Messages are one-time self-destructing messages. These messages are sent as special links in chats and emails. After the link is viewed once it self destructs. As soon as a Certified Message is viewed it takes on a totally new functionality. The link becomes a tripwire reporting on any unauthorized viewers. Using Certified Messages can help you detect if anyone has been spying on your emails. You can go back and look at the Certified Messages you have sent in your emails to see what IP addresses have attempted to access the sensitive data. Certified Messages also work in your favorite chats and instant messengers to keep conversations private.