https://medium.com/@timotheejeannin/i-built-a-screenshot-api-and-some-guy-was-mining-cryptocurrencies-with-it-cd188dfae773

Hey folks, just wanted to share this story. Yes, I could have been better prepared for what happened, I know. :)

This morning when I opened up my inbox, I had around 150 alert emails from the the logging tool I use. I immediately though I must have pushed a nasty bug to production and started investigating. I quickly realized some guy was creating new accounts really fast on our screenshot API service and was rapidly using all the free plan credit.