<p>A quite simple idea.<br>
Scams often are done via stolen fiat accounts.<br>
So add as a public account info the sha256() of the used fiat account IBAN.<br>
If/when we notice that a given IBAN corresponds to a badly behaving IBAN, then add the sha256() of this IBAN to a public blacklist. Could even be managed internally to Bisq.<br>
So we have blacklisting, concerning the root of worries, but without disclosing private IBAN.</p>
<p>(Sorry if this idea was already proposed/dismantled).</p>

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