I think they mean things like artifical visitor inflation. For example, to make a Youtube video "viral" they could seed it with 30,000 fake views. Or, perhaps,

I think they mean things like artifical visitor inflation. For example, to make a Youtube video "viral" they could seed it with 30,000 fake views. Or, perhaps, they could mass upvote certain HN threads as soon as they're posted... Remember that intelligence agencies generally care more about exploitation (figuratively) and manipulation than attack.