The security in Visa, for the most part, doesn't come from protecting you from illegitimate charges happening in the first place, but rather in the fact that there's a chain of authentication so that charges can be reversed at any time, and an expert system trained on your buying habits so that you'll be alerted when you probably do need to make a reversal.
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The security in Visa, for the most part, doesn't come from protecting you from illegitimate charges happening in the first place, but rather in the fact that there's a chain of authentication so that charges can be reversed at any time, and an expert system trained on your buying habits so that you'll be alerted when you probably do need to make a reversal.