On 12/21/2011 16:37, Red Green wrote:

Discover has virtual account numbers. Valid only for the vendor it's first
used for. Useles to anyone else who gets it. Always use them for Internet
purchases.

Citibank and Bank of America have more security features than Discover
with virtual account numbers -- you can specify a dollar and time limit
for each virtual card. Sometimes the single vendor feature can
backfire. One example is booking a vacation package with a travel
agency. They may forward your card number to the airline(s), hotel(s),
and other service providers to charge directly.
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