MASSCAN: Mass IP port scanner

Don't get me wrong, I think this is some great coding, but I'm just wondering... what might be a legal/ethical use this? I'm thinking that most companies own at most a couple thousand machines, so something more traditional like nmap might do just fine.

I love the pull requests and the messages in data/exclude.conf

Entire IPv4 Internet, I think they mean.

Been using this software as well as Zmap for Internet-wide scans for the past three years. This kind of software is scary powerful.

It is great. My mobile career exposed a huge /8 network and we could even scan it to find some lonely IoT devices with default root passwords with masscan in minutes.

Why is this just making its way to HN front page right now?