SSHGuard. Very similar to DenyHosts in that it watches your logs and tries to prevent hacking attempts (you can limit the number of login requests from any one place, etc). This is an actual C application though not a set of scripts like DenyHosts. If you have a server online you should definitely be using something like this.     #>

Stocking your first aid kit. Nice page by the American Red Cross listing items they feel you would include into a well-stocked first aid kit. Definitely worth a look over.     #>

Firefox Sub-resource Integrity. Interesting addition to Firefox, you can now specify a hash of your resources (Javascript, images, etc) and the browser won't run it if notices a mis-match. Handy if you are worried about someone else injecting into your page.     #>