[Leica] Credit Card Fraud

[spencer at aotera.org (Spencer Cheng)]

The credit card companies has some very fancy neural nets and other 
artificial intelligence (yes, yes, it's an oxymoron :) programs which looks 
for certain purchase patterns. A typical pattern for credit card fraud is a 
few small charges (gas,...) followed by major purchases. Large oversea 
purchase almost always requires manual verification regardless of whether 
you call your card issuer ahead of time or not.

Regards,
Spencer

On Apr 7, 2010, at 1:23, Frank Filippone wrote:

> [...]
> In December, it was a real person calling asking if we had just charged $34
> ( three times....!) at a Post office.... which of course, we had not.
> What does a bad guy buy at the Post Office for $34??  80-odd stamps?  Three
> times?