If you suspect that your recovery phrase has been compromised, take immediate action to safeguard your assets.
Here are the steps to follow:
Create a new wallet on the Frontier app as quickly as possible and transfer all your coins there if the hacker does not already have access to them.
Save the recovery phrase of your new wallet offline, like in a notebook or on a piece of paper that you can keep in a secure location.
Permanently delete the old wallet if the hacker has already wiped it clean. Remember, you cannot reuse a hacked wallet as it has already been compromised.
Scan your device, mobile, tablet, or desktop for any malware or malicious activity using an anti-virus software of your choice.
Report the case of stolen funds to the relevant authorities if you plan on taking legal recourse to get your money back.
Call your bank immediately if you notice any suspicious transactions or charges on your bank card or bank account, especially if they are in any way linked to your crypto wallet. Have them cancel your cards if they were linked to your crypto wallet.
Report the attempt of any unauthorized transfer of funds from your non-custodial wallet to a crypto exchange immediately to the relevant exchange. Most exchanges have a KYC process in place, which can help identify the thief's identity, potentially leading to their arrest.