Allocate a total budget and use fake balance?

[Sjors]

In order to not accidentally leak your lightning node wallet when the nsec is compromised, I think the balance should be the minimum of the real balance and some fake value.

cln-nostr-wallet-connect/src/main.rs

Lines 354 to 361 in 6450ad9

	Ok(Response::ListFunds(funds)) => {
	let balance: u64 = funds
	.channels
	.iter()
	.map(|c| c.our_amount_msat.msat())
	.sum();
	let balance = Amount::from_msat(balance);

One approach would be to have a command like lightning-cli nostr-wallet-topup which allocates a specific budget. You'd then have to track receives and spends. This could be a nice additional safety above the hourly and daily limits.

The prevent fractional reserve shenanigans, you'd still want to take the minimum of this value and the real balance.