[dmix]

Yes, proprietary can be secure. But my question to you is why bother?

As a business model open-source arrangements such as Red Hat or the countless Hadoop services show that you don't really need to lock down the source code to create a successful business around it.

With communications software, the costs a closed-sourced software with magical trust-us crypto getting fully compromised is incredibly high. If people can't trust their basic tools to be private, nor be able to verify it, than they can't assume any conversation they have is private. That's a scary world IMO.

This is particularly true for broken encryption more than the presence of memory exploitation such as Heartbleed or Shellshock.