You can use the following link to send confidential information to another person in an email:
https://passpush.computersdotcalm.com

Enter in the information that you would like to send to someone else in the text area provided:

You should leave the default options as shown unless you have a good reason to change them. Please let the person that you will be sending the link to know that they only have 2 days to retrieve the information and they only get 2 views as well.

When you are ready to send the information, click the Push it! button at the bottom.

This will create the link for this information:

You can either hightlight the link created or click on the clipboard icon beside the link. You can paste this link in an email to the user you would like to share this information with.
The concept behind this is if the user you share this link with clicks the link and gets either of these messages (The important part in the first screen shot is the 2 days or 0 more views):

or:

Then the email has been intercepted and the information is compromised. If either of these events happen, CHANGE THE INFORMATION RIGHT AWAY!!