A short, opinionated list. Everything here is something I've used or read properly — not a link dump. Edit content/pages/resources.md to make it yours.

Frameworks and references

ResourceWhat it's for
MITRE ATT&CKThe shared vocabulary for attacker behaviour. Map your detections to it and your coverage gaps become obvious.
NCSC guidanceUK-specific, well written, and refreshingly free of vendor spin. The 10 Steps and Cyber Essentials material are good starting points.
CIS ControlsA prioritised list of what to fix first when everything feels urgent.
NIST CSFUseful when you need a structure to hang a programme off, and a common language with auditors.

Detection and hunting

ResourceWhat it's for
SigmaPortable detection rules. Write once, translate to your SIEM of choice.
Atomic Red TeamSmall, safe tests to check whether a detection actually fires.
The DFIR ReportReal intrusions, documented end to end, with the artefacts. Some of the best free training available.
LOLBASLiving-off-the-land binaries — what attackers use so they don't have to bring their own tools.

Analysis tools

ResourceWhat it's for
CyberChefDecoding, deobfuscating and generally untangling anything.
VirusTotalFirst stop for file and URL reputation — with the usual caveat about not uploading sensitive samples.
VelociraptorEndpoint visibility and forensic collection at scale.
WiresharkStill the answer when you need to know what actually crossed the wire.

Staying current

For people starting out

If you're trying to break into security, the honest advice is: build something, break something, and write about both.

  • TryHackMe — guided, forgiving, good for fundamentals.
  • Hack The Box — less hand-holding, more realistic.
  • LetsDefend — blue-team focused, which is rarer and closer to most real jobs.

Nothing beats a home lab and a notebook. The write-up is where the learning actually sticks.