You have the wrong impression. No United States law criminalizes port scanning. This is a legal and useful service.<p>See for yourself: <a href="https:&#x2F;&#x2F;nmap.org&#x2F;book&#x2F;legal-issues.html" rel="nofollow">https:&#x2F;&#x2F;nmap.org&#x2F;book&#x2F;legal-issues.html</a><p>Even if it was illegal wouldn&#x27;t the answer simply be to rent servers in a country where it isn&#x27;t illegal (or even condoned by the government) and scan away? I&#x27;d imagine most government responses to this would be IDGAF.