Wired reports that the NSA is building a massive facility and (probably!) the fastest computers ever to decipher encrypted transmissions, emails, telephone calls, search histories, and everything else. How many of these things?

All of them.

In addition to giving the NSA access to a tremendous amount of Americans’ personal data, such an advance would also open a window on a trove of foreign secrets. While today most sensitive communications use the strongest encryption, much of the older data stored by the NSA, including a great deal of what will be transferred to Bluffdale once the center is complete, is encrypted with more vulnerable ciphers. “Remember,” says the former intelligence official, “a lot of foreign government stuff we’ve never been able to break is 128 or less. Break all that and you’ll find out a lot more of what you didn’t know—stuff we’ve already stored—so there’s an enormous amount of information still in there.”

That, he notes, is where the value of Bluffdale, and its mountains of long-stored data, will come in. What can’t be broken today may be broken tomorrow. “Then you can see what they were saying in the past,” he says. “By extrapolating the way they did business, it gives us an indication of how they may do things now.” The danger, the former official says, is that it’s not only foreign government information that is locked in weaker algorithms, it’s also a great deal of personal domestic communications, such as Americans’ email intercepted by the NSA in the past decade.

Oh, and AT&T and Verizon are helping them. Because you were looking for more reasons to hate them.

(via Choire Sicha)