I trust your word, but I have the email with all the security methods and I don't have any login outside my ip, but I already changed the email password again, could it be something on the computer like malware or spyware?
It could easily be malware or any unofficial apps you use. The email account definitely authorised all changes.
You can only sign messages from your wallets. You don't own Coinbase's wallet, they do.
You should also read Coinbase's Terms of Service and search for the word "Gambling".
good afternoon, so you think that changing the password is not enough? should i take further action?
I went to see it, I didn't know that part ... but either way I sent an email to the Coinbase support to see if they can help me, I was seeing on the internet that they had the option to send a signed message before .. maybe they have some way and i'm not finding
thank you
Best regards