Are you talking about how cURL works or how one downloads (Windows) cURL in the first place, as is the topic of this post?<p>It may not be ideal but you could certainly put some form of authentication in front of the Windows downloads or force token generation via the Web site to download the executable.<p>The question is whether that&#x27;s a good idea - as mentioned, it&#x27;s not cURL&#x27;s responsibility to prevent malicious usage, but perhaps being a little more cautious about the <i>acquisition</i> of cURL in the first place for Windows users might not be seen as an intrusion.