Best way to communicate securely?

[SgtSpike]

I need to send a confidential piece of data to another person electronically.  What is the best method of doing so, with zero chance of anyone else intercepting/interpreting/storing the data sent?  I would send it via email, but email logs could potentially reveal it in the future.  I would send it via a chat program, but not sure whether the central server for the chat service might be storing the data.

[Alex Beckenham]

Does the other person have a public GPG key they can give you?

[joulesbeef]

torchat is pretty brainless and uses the tor network

pigeon with the encryption plugin.

or as said above, gpg

or something like www.encr1pt3d.com which just lets you make a simple encrypted message with a pass.. there are a lot of sites like it but of course you have to trust how it was set it.

[Jaime Frontero]

the Cone of Silence.

[evolve]

in person. 

[bitfreak!]

Download Hamachi and set up a LAN-like network over the internet with people you trust. The application comes with a simple chat utility, and all convo's are encrypted with AES-256 using the network key shared between members of your group.

[naypalm]

Use 7zip, right click on the folder click add to archive, encrypt it using AES 256-bit and use a really super long complex password. Create an account and Upload it to MegaUpload. Send the link via email. Once they download it, check to see if it was only downloaded 1 time and delete it. Then send password via email.

Both ends must have a secure connection to their email website of course (https://)