Most current and historic problems in computer and network security boil down to a single observation: letting other people control our devices is bad for us. At another time, I’ll explain what I mean by “other people” and “bad.” For the purpose of this article, I’ll focus entirely on what I mean by control. One way we lose control of our devices is to external distributed denial of service (DDoS) attacks, which fill a network with unwanted traffic, leaving no room for real (“wanted”) traffic. Other forms of DDoS are similar: an attack by the Low Orbit Ion Cannon (LOIC), for example, might not totally fill up a network, but it can keep a web server so busy answering useless attack requests that the server can’t answer any useful customer requests. Either way, DDoS means outsiders are controlling our devices, and that’s bad for us.

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