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I was recently scammed by either a man in the middle attack or a replay attack due to insufficient authentication of a new party I did business with.

When you are starting a new person to person transaction with an unknown party, it seems impossible to verify that an attack like this is not happening. The attacks could get arbitrarily complex and every defense I can think of has repucussions.

Even trying to start a transaction could be replayed to someone to make it look like I was the one that was doing the scamming.




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