Re: IOTA - the scam is being pumped hard now don't fall for the trap
Your point was secure m2m communication, that means transport layer, but sure now you move to application-level. OK.
I don't recall ever mentioning any part of the OSI stack... secure communication usually means on any and all layers. Even then, SSL has its vulnerabilities unless you implement certificate pinning.
If only there was a cryptocurrency which relied only on signing messages and didnt waste energy doing worthless PoW... 
Oh right, Byteball!
Oh right, Byteball!
If only there were no transaction fees... oh wait... IOTA.
BTW; I work exactly with these types of problem, at an IoT company.
That is great, but I'm out of cookies.