I’ll admit this volume of attacks might not be typical. I hosted my fake toaster on a virtual Amazon server, not an actual toaster hooked up to residential internet. Hackers aren’t typing these passwords themselves—they’ve programmed bots to do the hard work for them, scanning through thousands of open ports an hour. And I’d bet those scripts are trawling Amazon’s range of IP addresses more frequently in hopes of hacking vulnerable rookies. (If that has happened to me without my knowledge, I am very sorry and please don’t hurt me.) But my experience matches what security firms have seen. It is now within the capability of hackers to literally scan the entire internet, looking for vulnerable servers with open ports. And every hacked computer adds another recruit to the search effort, shortening the time required geometrically.
Matthew Prince, the cofounder and CEO of Cloudflare, said anyone hooking up a poorly secured  IP device to the internet can expect to see that gizmo hacked within a week, if not much sooner.
“Assuming it’s publicly accessible, the chance [of being hacked] is probably 100 percent,” he said. “The IPv4 address space just isn’t that big. You can now run a scan across that entire space in hours, especially if you have a big botnet. The scans for vulnerability are continuous, and if anything, have accelerated over the last couple of years.”
This doesn’t mean that every Internet-of-Things device is vulnerable. Most things that you connect to the web through your home WiFi are probably okay: Your router kills most incoming hacking attempts. (Of course, if your router is compromised...) You have more to worry about if your device hooks up to your modem directly, which is more common in industrial settings.
All the same, the vastness of the internet can no longer protect us. I can’t count the number of sloppy things I’ve done, security-wise, because I thought I was small enough to escape notice—reused passwords, put private keys in code, left servers open to the world. Nowadays, even the most obscure among us can be found by a roving script, and in a startlingly small amount of time.