And wording of that tweet is vague, it doesn't say Authy confirmed anything, just that "reached out to help confirm". Hopefully their help will be along the lines of "here's contact info for CEX and Coinbase, give them a call"

If I was a high-profle client like CEX or Coinbase and I heard that one of our vendors for security was going around telling other clients how we are being outperformed like that I would be pretty pissed. Especially in public and would strongly consider taking my business elsewhere to a place that doesn't have such loose lips about our business with them.
Someone in our irc also emailed authy on dates listed, customer service and engineer support, same answer you got, sorry we did not show it b4 on here or reddit. Thank you for being the best keeping us up to date with what is going on with companies and crypto currency.
Authy via authy.zendesk.com
Oct 30
to xxxx
--------------------
Your request has been solved!
We'd love to hear what you think of our customer service. Please take a moment to answer one simple question below:
How would you rate the support you received?
Good, I'm satisfied
Bad, I'm unsatisfied
Authy Engineer Support (Authy)
Oct 30 14:40
Sorry we do not comment on customers accounts.
Authy Engineer Support
Authy
Nov 3
to xxxxxx
--------------------
Your request has been solved!
We'd love to hear what you think of our customer service. Please take a moment to answer one simple question below:
How would you rate the support you received?
Good, I'm satisfied
Bad, I'm unsatisfied
Authy Engineer Support (Authy)
Oct 30 15:00
Hi xxxxxxx,
Sorry we do not comment on customers accounts.
Authy Engineer Support