The first paragraph says he made a mistake when uninstalling Redis, he didn&#x27;t have it running on purpouse.<p>Everyone is fallible, things tend to go wrong. Insecure defaults in software hurt even expert devs (which this guy is if you look at his blog).<p>If your software is &quot;designed to be totally insecure if exposed to the outside world&quot; you should not ship it with defaults exposing it to the outside world. IOW you should not design software to be totally insecure by default.