Easy

What would be the most effective terrorism if terrorists actually cared about achieving their goals? This site got me thinking about it, and I think this is correct.

But now I’m wondering: if they were acting for political goals, what would be their best strategy? I think it would be to attack the technological infrastructure. There’s no way all that stuff can be guarded, and one person can do a lot of damage with little risk of being caught.

Indeed — give me three people, a few pounds of C-4 and a weekend, and I could eliminate North American internet access for three to six months. Maybe longer. I don’t mean it’d be partially available. No, it’d be gone.

Why no one has done this, I don’t know. Because it’s so, so easy.

If you doubt, it’s no harder than this even in North America.