Thank you for researching that. That should be the top answer. I looked at the links above: the first two are definitely data centers[1][2] and they were definitely hit by ransomware. All the other replies on this page are assuming that data centers don't get hit and try to offer rational reasons why not. But I see no a priori reason to think that data centers aren't just as incompetent as any other kind of company.

[1] CyrusOne provides mission-critical data center facilities. (from the About page)

[2] Equinix is the world's digital infrastructure company. Founded in Silicon Valley in 1998 as a vendor-neutral multitenant data center. (from the About page)