Is there a way to trace a transaction that was being done from an unknown person address to someone wallet, why i asked is that i have a friend that received some worth of USDT in his wallet from an unknown address so i want to ask and hear multiple opinion on what he should do with the said USDT.
Maybe the address was mistakenly used by the sender without knowing, it is very possible that is addressed was already made visible online, or maybe the sender has performed a transaction with him before in the past and made a mistake in sending to his address again.
Also, check if the amount received is not much, I mean something less than $5 should be a suspicious move, it could be that they are trying to introduce address poisoning to him without knowing, someone like me will not post my address publicly online except I intentionally give it to a sender whom I want to perform a transaction with.