# The Write Blocker > The Write Blocker is an independent editorial publication covering digital forensics and information security: plain-English explainers on how investigations actually work, accurate guides to the tools examiners rely on, and honest advice for people building a career in the field. Everything is written from a defensive, educational standpoint — investigation, evidence handling, and hardening, never intrusion. The Write Blocker publishes original, long-form guides about digital forensics and information security. Every article opens with a concise direct answer, is structured with clear headings and FAQs, and reflects mainstream expert consensus. Health-related content is educational and encourages professional consultation where appropriate. ## Forensics Fundamentals - [Chain of Custody in Digital Forensics: How It Works](https://computerforensicsworld.com/chain-of-custody-digital-forensics/): Chain of custody in digital forensics is the documented, unbroken record of who collected digital evidence, when, where, and how it was stored,… - [What Is Digital Forensics? Process, Types, and Examples](https://computerforensicsworld.com/what-is-digital-forensics/): Digital forensics is the practice of identifying, preserving, analyzing, and reporting on electronic data so it remains reliable enough to serve as evidence. ## Tools & Software - [Forensic Image Formats: RAW, E01, AFF4, and L01](https://computerforensicsworld.com/forensic-image-formats/): RAW or DD is the simplest forensic image format and offers broad tool compatibility. - [Free Digital Forensics Tools: 10 Worth Learning First](https://computerforensicsworld.com/free-digital-forensics-tools/): The best free digital forensics tools are Autopsy for GUI-based disk analysis, FTK Imager for creating verified forensic images, Volatility 3 for memory… ## Careers & Training - [How to Become a Digital Forensics Investigator (5 Steps)](https://computerforensicsworld.com/how-to-become-digital-forensics-investigator/): To become a digital forensics investigator, build IT fundamentals (operating systems, networking, storage, basic scripting), learn forensic process and… ## Full text for LLMs - [llms-full.txt](https://computerforensicsworld.com/llms-full.txt): every article as plain markdown in one file - Each article is also available as markdown at https://computerforensicsworld.com/.md ## Site - [About](https://computerforensicsworld.com/about/): editorial approach and standards - [All articles](https://computerforensicsworld.com/all/) - [Contact](https://computerforensicsworld.com/contact/)