The WSJ on what they are calling “Obama’s cyber meltdown” detailing how the recent OPM breach gets worse with each new day:

The volume of data also allows the Chinese to do what the intell pros call “exclusionary analysis.” We’re told, for instance, that some highly sensitive agencies don’t send their background checks to OPM. So imagine a scenario in which the Chinese look through the names of 30 State Department employees in a U.S. embassy. Thanks to their hack, they’ve got information on 27 of them. The other three they can now assume are working, undercover, for a sensitive agency. Say, the CIA.

Or imagine a scenario in which the Chinese cross-match databases, running the names of hacked U.S. officials against, say, hotel logs. They discover that four Americans on whom they have background data all met at a hotel on a certain day in Cairo, along with a fifth American for whom they don’t have data. The point here is that China now has more than enough information to harass U.S. agents around the world.

And not only Americans. Background checks require Americans to list their contacts with foreign nationals. So the Chinese may now have the names of thousands of dissidents and foreigners who have interacted with the U.S. government. China’s rogue allies would no doubt also like this list.

This is a failure of extraordinary proportions, yet even Congress doesn’t know its extent. The Administration is still refusing to say, even in classified briefings, which systems were compromised, which files were taken, or how much data was at risk.

There are just so many unintended consequences of this breach, it is going to take years before we fully understand and realize the implications. This is why cyber security is so important, and why senior leadership in the military, government, and industry need to understand it, cultivate it, and embrace it.

Failure to do so will do nothing other than lead to more OPM-like breaches in the future.