Do all swap providers use Hash Timelock Contracts?

I understand that hash timelock contracts aka cross chain atomic swaps are possible:

However, another way to perform a swap would simply be to take custody of the funds and send the other crypto in return, which would have much higher counterparty risk.

When it comes to the swap providers built into trezor, is there any way to know which swap providers are using lower risk atomic swaps vs. high risk swaps?

Even if they claim to use atomic swaps, is there any way for me as a user to verify that they are not just saying that when they actually aren't?

1 thought on “Do all swap providers use Hash Timelock Contracts?”

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