He is talking about Wickr the mobile phone app, it's much like seecrypt that I checked out in
http://www.theironden.com/forum/threads/17215-seecrypt-(free-secure-app-for-your-smart-phone)
I have to say that I had a look over the Wickr website and I would not trust it. I would not advise it and I do not think it is safe.
I'm on my mobile so don't really have the capability to make the kind of post I should to explain everything but I will type up a bit. It's much like the seecrypt program using AES as encryption however it's got an even worse implementation and privacy policy. The wickr app does advertise a lot of security but in reality it has poor security and a bunch of flashy features. Once again, I would not trust wickr.
Here is their policy on law enforcement:
"Law Enforcement: We will only disclose User-Provided and Automatically Collected Information under these circumstances: When doing so is reasonably necessary to comply with a law, regulation, or legal request; to protect the safety of any person; to address fraud, security, or technical issues; or to protect our rights or property. If it is legal and possible for us to do so, we will notify you of any request for your information before we preserve or disclose it, so that you have an opportunity to obtain counsel." Source:
https://www.mywickr.com/en/privacypolicy.php
Now try and disguise what they are doing with clever wording but at the basic level, they co-operate with law enforcement. They say only automatically collected data, which could be ANYTHING including your phone details, messages, records, etc as all of this is collected automatically and not manually.
Now a bunch of other things with wickr threw up red flags. The fact that they just delete sensitive files, they do not wipe it. And yes, there is a huge difference. If you delete a file it is still very much able to be recovered and used again while a wiped file will not be recovered under any circumstances. So in short, the messages will remain on your phone and on their servers, completely undermining the security.
They don't sell a secure product, or anything close to it. They sell the illusion of security. Stay away.