Not a new tactic. A classic way to cut down exploit attempts to something you can actually monitor rather than a firehose, for sites that don't need an internat

Not a new tactic. A classic way to cut down exploit attempts to something you can actually monitor rather than a firehose, for sites that don't need an international audience, is to blackhole IP blocks from China and Russia. Sites have been doing that since at least the early 2000s.