Another classic case of Data Loss that could have been easily prevented
November 20, 2012 Leave a comment
I was catching up on my reading from my security forums and this caught my attention. In a hack of the SC state tax department there were about 3.6 million tax returns stolen. The stolen information included SS#, CC numbers, names, addresses, etc. But the one that caught my attention the most was this:
The hacked personal income tax returns included Social Security numbers and about 387,000 credit and debit card numbers, 16,000 of which were not encrypted.
Why would anyone choose to encrypt partial data? It looks like there is a policy and/or workflow flaw. I hope they didn’t do this based on identities. Were red customers encrypted and not the blue? Check out my blog on context/ identity aware data protection to implement this the right way (link here). There is a reason why I am not paying my taxes using a Credit Card. Atleast not until they use Intel ETB (Token Broker) to protect that data :). If they had used our solution this wouldn’t have happened to begin with. We could have encrypted the sensitive data (PII), while preserving the format, and tokenized the credit card (PCI) information.