Encryption-tolerant data scanning from GTB
by Andy Oram
What makes this package different from most is that it can check content even if it's encrypted. Essentially, companies can have their security cake and eat it too. They can allow widespread encryption to protect against snoopers inside and outside, while preventing employees from using that encryption to sneak company secrets out port 25 or even something as immediate as IM.
And GTB claims they can do this while adding only 3 milliseconds to each transaction.