I've spent more than a decade now writing about how to make Have I Been Pwned (HIBP) fast. Really fast. Fast to the extent that sometimes, it was even too fast:The response from each search was coming back so quickly that the user wasn’t sure if it was legitimately checking subsequent addresses they entered or if there was a glitch.Over the years, the service has evolved to use emerging new techniques to not just make things fast, but make them scale more under load, increase availability and so...