Not really. Think of the HPC and Big Data giants. They have a great interest to find a flaw.
They also probably have the greatest interest not to disclose it to you.
Many of them contact us to see how they will be able to keep their business with Xennet.
I have trouble believing any major players are really threatened. Xennet isn't the first attempt at a decentralized resource exchange. Heck, many of them even do their own "decentralized" resource exchange, already.

Interesting. I'm sure some other coins have gotten similar C&D notices lately, but you're the first I've seen who has said such publicly.