https://matthewhealey.dev/blog/ Web security, pentesting, and the things I got wrong on the way. en-gb https://matthewhealey.dev/blog/thm-windows-fundamentals/ https://matthewhealey.dev/blog/thm-windows-fundamentals/ Tue, 01 Sep 2026 00:00:00 GMT The Windows material I found taught me to click through Settings. That is not what I needed. https://matthewhealey.dev/blog/subnetting-in-a-day/ https://matthewhealey.dev/blog/subnetting-in-a-day/ Tue, 18 Aug 2026 00:00:00 GMT Picking a topic up fast is not the same as picking it up correctly. Two errors I couldn't see from the inside.