yeah and you don't even need to change bitcoin - just use a stablecoin over-collateralized by BTC built on the bticoin network. In essence these systems work with $1 of the stablecoin backed by $N dollars (N > 1.6) of the the backing asset (BTC). Then they use a smart contract system of price oracles, liquidations & interest rate curves to balance supply, demand and risk parameters. It's pretty much an over-collateralized lending protocol that issues its own asset that is pegged to $1

This has worked well for the past 11 years with MakerDAO on Ethereum and it's stablecoin DAI. I think at its peak the DAI stablecoin had around $7 billion in circulation and was about 5-10% the size of USDT, now it's about half that. However, high treasury interest rates and low interest in decentralized stablecoins have made more "traditional" stablecoins like USDT, USDC vastly more profitable and successful. In recent times even DAI has been trying to become more like USDC and USDT with treasuries held in intermediaries

now it's way easier to track public blockchain transaction chains on Bitcoin, Ethereum and the like than it is to track bank transfers across countries

This guy Pratchetts.

This was a multisig - meaning M out of N signatures from different signing devices were needed to sign a transaction. The attacker infected enough signer devices to go unnoticed and the signers failed to verify what they were signing on air-gapped devices

None of them were better than a human at giving hints for 3+ words though

You use them to sign transactions that are perfectly safe even if your computer / phone where you initiated the transaction is infected with malware. They give you a chance to confirm that the transaction you're signingon the hw wallet is the one you initiated on your computer.

> daily spend limit

> different panic codes

> Co-signing by third-parties

What you describe already exists in "software multisig wallets" on smart contract blockchains. In essence they're smart contracts that require n of m signatures to initiate a transaction and can handle variable spending rules, custom signing schemes, 3rd party signers, things like 2FA / email for signing. In theory they can be implemented for non-smart contract blockchains like Bitcoin using multi party computation schemes like FROST (https://github.com/ZcashFoundation/frost) but that's a lot harder

We'll probably have more details about this in a few days just goes to show how you can't hide on public blockchain ledgers.