Looks like Authy doesn't like Coinbase
https://www.authy.com/phones/reset/
Authy cannot recover Coinbase tokens, so if you complete this process, your Coinbase token will be wiped and you will need to contact Coinbase support to regain access: support@coinbase.com
Please always verify e-mails via Grams InfoDesk and also always encrypt your info with the vendor's PGP-key.
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