Regardless of your view about the sanction and its rippling repercussions, in general, you may want to protect yourself against "taints" -- that is, receiving transactions from accounts you prefer not to interact with.
不管您对制裁及其影响的看法如何，一般来说，您可能希望保护自己免受“污点”——即从您不想与之互动的账户接收交易。