There's a way to send an e-mail to someone with Military Grade Encryption and once read, auto and self destructs Once read.Here'

Windows/OS X: Dashlane, one of the most useful password management tools around, unveiled a new service called Dashlane Courier that allows users to send secure, encrypted messages and passwords to anyone—whether they are a Dashlane user or not, and once read , self-destructs in 30 minutes after it's opened.

This application is great for sending passwords to others, or if  you need to share a personal password with a someone over email. This service is additionally useful for other sensitive information, like credit card numbers, or even those hanky panky love messages to your busty secretary that you, understandably don't want others to read. Messages sent with Dashlane Courier are AES-256 encrypted. For those that don't now, that's almost Military Description. While you do need Dashlane installed on your desktop to send a message, your recipient doesn't need to be a Dashlane subscriber to read it.

All you need is the last Dashlane version installed and a Dashlane account.Even if you don't utilize it to manage your passwords, you can still use it to send private auto-destruct messages. 

Your recipient gets an email with a notification that they have a secure message to view, together with a link to view the message and a key to read it. As soon as that link is clicked, the 30-minute clock starts ticking and your recipient has to either save or download the message contained within,. Afterwards, the message is deleted and gone forever. You can read more about the new innovative feature here.

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