Let's say I'm in a Internet Cafe in some place of the world* and I buy their services to access some online instant messanging service.

Suppose I chat with a person online who decides they really dislike me, to the point that they find my IP address (which is, of course, the address of the computer I'm sitting on) and decides to launch a DDOS attack on that address, by sending a large amount of traffic through the internet, which as a result floods my connection and doesn't allow me to use the internet.

Let's also assume that the IP address is static and that the attacker is not willing to ever stop, which means that the specific internet cafe machine will stay flooded for quite a while, causing a lot of damage and money loss.

Could I be held responsible for the damage caused to that computer, just because someone decided to DDOS me?

* If some place of the world is too general, let's say I'm in the US.

  • In this hypothetical, have you provoked this person? How? Do you know before chatting with them that they dislike you? Commented Jul 29, 2017 at 22:42
  • @JeanLucPicard Does it legally matter? I mean even if I did provoke him somehow, he still wouldn't be allowed to react that way, would he? If it does matter however, I would like to hear what would happen in both cases, and who would take the blame.
    – user10528
    Commented Jul 30, 2017 at 0:01

1 Answer 1



Focusing on the US, DDoSing someone is illegal. It is a criminal (and possibly civil) wrong under the CFAA. It may also violate some other statute or be in breach of some contract signed by the DDoSer. However, the question was whether the person being DDoSed is legally in the wrong, so: There are a variety of ways an action can be "illegal." It could:

Violate some criminal statute

This looks promising; after all, US law regarding internet activities is obscenely broad. That said, I can't think of any state or federal statute prohibiting the conduct in question, unless some aspect of it were prohibited under a term of the internet cafe's ToS (more on this possibility later), in which case using the internet cafe's computer in violation of that term might constitute "unauthorized access" under the CFAA, a federal crime. All of that said, state laws are weird, so there's a very slim outside chance the conduct in question might violate some state law.

Constitute some kind of civil tort

This doesn't really hold up either. A civil tort requires that you owe some duty to the person against whom you are allegedly committing the tort and that you cause them damage by violating that duty; I don't see one here.

Breach of Contract

Presumably, you agreed to some policy of some flavor when you started using the internet cafe's services. There's an outside chance that it prohibited some conduct (racial epithets, harassment, etc), and that, if your engaging in said conduct caused the other person to DDoS the internet cafe, the cafe could sue you for special damages. This would be the most likely way, in my opinion, for your conduct to violate US law; even it is extremely unlikely at best.

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