We’ll let Mr. Tiemann speak for himself:
In the middle of a cornfield in the middle of Iowa, there is a data center.
Not just any data center. It’s InfoBunker, probably the securest data center you’re ever likely to find. It’s built in a decommissioned Air Force bunker that once housed hardened military telecom equipment, as the giant radio tower that stands above the parking lot—and can be seen for miles around—attests. But that’s pretty much all there is that can be seen by passersby, aside from a small entryway hut and some storage sheds and old wire spools on a patched, 60s-era parking lot. The facility extends five stories below ground, with multiple data floors, employee areas, and living quarters (the 24/7 staff doesn’t see the sun very much).
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It’s not my place to go into too much detail about what’s housed in the bunker, as just to get inside under escort you have to agree to a strict no-photos policy (perfectly understandable); but suffice it to say that the simplex lock on the main hut door is only the very beginning. Many hardened, keycoded, and biometric-protected doors stand between the outside world and the NOC floors, including the self-sufficient power systems (six days’ worth of diesel fuel; 17,000 gallons of water, for drinking and fire suppression; military-grade NBC air filtration). It’s built to withstand a 20-megaton nuclear blast at 2.5 miles, according to the website, and I can believe it. Your data will be intact even if the rest of the Internet has been vaporized.