Dan Rowles daniel.rowles at wcn.co.uk
Thu Jul 8 13:49:33 BST 2010

A quick google for "one time credit card number" seems to suggest that 
PayPal offer one-use-only credit card numbers. No idea if that's 
actually true, but might be worth a look....


Peter Corlett wrote:
> On Thu, Jul 08, 2010 at 12:27:42PM +0100, Chris Jack wrote:
> [...]
>> It's a long time since I sent credit card details by email and whilst I
>> think it is obviously a very bad thing...
>> If you have to do it, can I suggest you try to avoid putting the whole 16
>> digits in "1234 5678 1234 5678" style format as this would be a very easy
>> thing to parse for. Rather think up something like:
> An unencrypted credit card number sent over the Internet is highly unlikely
> to be compromised while in transit. There's just too much other traffic and
> it's too much effort while there is lower-hanging fruit.
> The real risk here is that the hotel apparently doesn't have a clue about
> security of credit card numbers. For example, they may just print out the
> email, and then shuffle over to reception to enter the number into their PDQ
> machine. The printout quickly gets lost in the pile of other paper clutter
> there, for any passing scrote to help themselves to.
> Obfuscation won't help you there.

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