After a portfolio founder’s sim got stolen, mine got hacked too - sim swap has become so easy targeting crypto player
@ATT@TMobile to be blame 🤬they are the few carriers on earth allow sim swap without in person KYC. Such policy shouldn’t exist at all https://t.co/sH6hJWjqKa
Basically don’t use sms mfa.
Other than that you can request your network not action these types of request unless in writing/confirmed by you, but whether the network actually take note of it is another story. If you decide to call them up to make this request, make a note of the questions they ask in order to gain access to the account; could anyone get the answers to those questions easily without your knowledge/consent? On occasion I try and break into my own email accounts to make sure I’m familiar with the vectors that would be needed, and how it will look to me (notifications for new logins etc) - the same applies here...I’ve not done it with my network provider, might be worth doing but I don’t use sms mfa.
Lastly, make sure the security info they hold on the account is unique to them - some operators use security phrases to gain access to the account - don’t reuse it anywhere else the same way you would/should not recycle passwords between services.
If you lose signal randomly and you’re somewhere you would expect to have it, call them from another phone to find out if anything is going on.
Personally I would recommend you switch to a password manager if not using one already, and use app based mfa. Make a note of the recovery codes you are given in a secure location (some pw managers allow you to store safe notes so that could be an option if you don’t trust yourself with writing them down and not throwing the paper away)