<i>And in such a scenario, it&#x27;s going to get out pretty quickly that the site is compromised&#x2F;dangerous.</i><p>If a perpetrator is smart, the malicious script is going to be hidden a few invocation layers deep, and will only remain up for short intervals. A naive or stupid perpetrator is going to get caught quickly. But the medium is such that a smart one can hope to evade detection.