As a trader, you can reduce the risk of loss from a double attack race spending your properly configured node (no incoming transactions, explicit outbound links connected nodes). There is always a small risk of fraud even with this configuration, but is rare and relatively arbitrary. Thus, the deterrent effect of the attacker is that if the success of the double spending occurs only rarely, every attempt failed is a profitable sales to the merchant and thus in the long run, it pays for the attacker and profitable for the trader. There are circumstances in which a trader is vulnerable. A machine without change parts surveillance a laundry, for example, would be the worst case for the trader. The attacker nothing to lose failed attempts (assuming that the machine does not take advantage of
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