"Chris" wrote in message
...
On 25 Jul, 20:28, wrote:
On 25 Jul, 18:45, Paul Corfield wrote:

While everyone is enjoying the card hacking speculation I don't think
this problem is anything to do with it.

I'd be interested in hearing then why suddenly oyster goes down twice
in 2 weeks , the 1st time trashing 60K cards, if it was just some
"data upload error" that was being bounced around as the official
excuse. Data errors don't mess up hardware.

B2003

Of course they can - incorrect data downloaded to cards can easily
makethem inoperable.

Only if you design your systems wrongly.

Incorrect data in the validators could easily make them not accept cards,
but it shouldn't cause cards to be trashed unless it has been specifically
designed to do so.

Both today anda couple of weeks ago are being put
down to Transys.& no hacking fix.

Hm, so we are told. It doesn't seem entirely believable.

tim