That’s actually an interesting topic.  There were a bunch of sim swapping and millions stolen when a hacker had access to personal info.  How hard should it be to change number for crypto phone wallets and accounts?  Should accounts be attached to 1 phone number for security reasons ?  Seems like new number should need new KYC?  Then transfer from one phone to new phone?  Interesting security vs ease of use discussion.  What is safe?