My understanding is that (a)(4) would require Wikipedia's computers to be the ones engaging in interstate commerce or communications, under the definition of "protected computer."
> My understanding is that (a)(4) would require Wikipedia's computers to be the ones engaging in interstate commerce or communications
Yes, Wikipedia's computers would need to be "used in or affecting interstate or foreign commerce or communication", 18 USC 1030(e)(2)(B). But I think they pretty clearly are, so I don't see that as problematic.
Fairly certain that my communications with WP's servers cross state lines. I can't recall any cases where the defense hinged on determining the target computer was not "protected".
Assuming that Wikipedia's computers are neither used in nor affecting interstate commerce or communication, that would be true.
Of course, since the whole reason for Wikipedia-oriented PR management is that Wikipedia's computers -- and, particularly, the hosting of particular content on them -- does affect interstate commerce, that's unlikely to be a successful argument.