Self Custody of your Bitcoin isn't hard, you just need to put in the work. Here's how to protect your Bitcoin in a way that allows you to be adaptable.

I am a mere pleb, standing on the shoulders of giants in bringing this information to you.

Border Wallets solve a problem faced by many Bitcoiners; how to quickly, easily, securely and reliably memorise 12 or 24 (or more) seed words. I think this is a great tool for any Bitcoiner to walk through when generating their seed, as it helps grasp an understanding of entropy better. Yes, Coldcard also allows you to generate a seed through dice rolls, another good solution!

Here, your 12 word seed phrase becomes two or more parts that are also BIP-39 compatible seeds phrases. Therefore you don't need to leave any trace of the original 12 words anywhere. By using Seed XOR you can have numerous copies of the XOR-ed seed parts, definitely etched in steel and if they are found, you are not to be too worried, as it could represent a 2-of-3 multisig set up, a couple of single sig wallets with passphrases etc. the possibilities are hard to narrow down.

Coldcard is easy to use for Seed XOR as is Seed Tool.

A would be attacker has had to jump through many hoops in order to gain access to your 12 words by now. AND STILL we can utilise more ways of obfuscation in Bitcoin. Through BIP-85 you can generate 10,000 other seeds, from your original seed, and use these to hold some of your cold stored UTXOs. You may want to leave some Bitcoin in the 12 word seed, as a decoy but that is down to personal preference. I would also recommend using passphrases for the BIP-85 generated seeds. These can be stored in password managers at a low risk because:

Someone could probably use a seed phrase from a BTC Sessions tutorial vid, and still be secure because of all the above