Sure! When Mythos was first announced, there was an obvious prediction to make: if what Anthropic says is even remotely true, the participants will start talking over the next few months about how Mythos has been a big deal for them. Then that happened (https://blog.mozilla.org/en/privacy-security/ai-security-zer..., https://blog.cloudflare.com/cyber-frontier-models/, https://blogs.cisco.com/cisco-on-cisco/how-cisco-defends-aga...), so I became convinced, although I shouldn't make it sound like I ever found the idea implausible.

I might be un-convinced if someone published a clear technical explanation of what error these companies have all made. The only counterarguments I've seen so far are vague speculation about how bubble dynamics might incentivize them to say it worked great, and to me that's not persuasive.