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