I don't quite buy this:

Litan blames the attacks on the thousands of IT workers who have recently found themselves jobless, with the technical abilities needed to steal data or perpetrate fraud along with specific knowledge of their former employer's IT systems.
You don't let your security professionals go in a recession just as you don't fire policemen in the middle of a crime wave

The people you let go are developers and junior admin staff who shouldn't fit the bill unless the systems security is a load of crap in the first instance. If you want additional staff at any time you just hire them on a fixed term basis.

However, you have created a pool of "ronin" who will probably work for anyone who pays them, and have had their sense of morality tempered by that of injustice.

Effectively, this makes it easier for criminals to hire IT professionals at much lower rates.