How is it a security problem? The article doesn't say anything about a security problem. On the contrary it says the security of some older fare cards has been compromised possibly allowing someone to alter their balance, though I am unaware of any attacks against DESFire.
I don't believe card in SF carry the balance information I thought that was on their side, issue is if people duplicate cards then they could share unlimited month passes.
Comments
How is it a security problem? The article doesn't say anything about a security problem. On the contrary it says the security of some older fare cards has been compromised possibly allowing someone to alter their balance, though I am unaware of any attacks against DESFire.
I don't believe card in SF carry the balance information I thought that was on their side, issue is if people duplicate cards then they could share unlimited month passes.