Good security is about defence in depth, layers of security. There is no one thing that will make you secure but one of the easiest things to do that gets you the best bang for your buck is patching your software.

On windows this is called Automatic Updates, in Debian …

Update 2017-03-02: If your using Nextcloud they now have their own in browser updater this script still works though.

One of the most important things in security is patching. For the last several years two out of the ASD's top four mitigations have been patching (patching applications and patching the …