Facebook Messenger might have a friend-to-friend payment feature in the future, and it was discovered by Stanford student Andrew Aude.
The hidden feature was discovered using Cycript, an app exploration tool for developers.
![](https://fooyoh.com/files/attach/images/1097/437/802/014/fbmessenger1.png)
Aude started digging after seeing a screenshot from Jonathan Zdziarski's security research into the app.
![](https://fooyoh.com/files/attach/images/1097/437/802/014/fbmessenger2.png)
He found a full-fledged app waiting to be made public.
This is what Kakao Talk is doing already. Are they following suit?