You probably don’t know that when you travel abroad, your credit card company monitors you through your use of their credit card. Credit card companies usually check on you if their computers detect an abnormal pattern of use. Msnbc.msn.com reports:
As credit card fraud has become more global and more sophisticated, so have efforts to ferret out illegitimate charges. Credit card companies have invested heavily in sophisticated anti-fraud computer software, which uses a complex algorithm to analyze the pattern of transactions, weighing such variables as dollar amount, time of day, day of the week, merchant category and the country in which the charges are made.
Read more: Your credit card is watching you
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