Is cold card the only one affected? Or is this all single sig wallets?

I would be researching entropy and learning how to generate your own seed phrase and make sure you have a passkey set up. Also don’t listen to your homies when it comes to protecting your bitcoin. DO YOUR OWN RESEARCH. I personally have been happy with the Swiss made bitbox 02 but again DYOR!

Not only MK3. All Coldcards to differing degrees.