Practical mitigation step if you're on a Coldcard and worried about the security issue - MIGRATE to a strong passphrase setup.
Example, select 7 words randomly from the bip39 word list, use that as your passphrase with a new setup.
Migrate coins from old setup to the new passphrase one.
Make sure you write down your new seed words + 7 word passphrase.
This will give you some breathing room while you think about next steps.
bip39 word list: