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Cybersecurity • Privacy • Linux • Compliance

Digital Security Field Manual

2nd Edition – Available Now

Master

Take back your privacy. Build secure systems. Operate anonymously. Master the tools and methods of a modern security professional.

“Privacy is not a privilege. It’s a right. And it starts with you.”

Digital Security Field Manual book cover

Author of security, compliance, privacy, and cloud offensive security books

Published by Purple Team Security and De Gruyter Brill

What's Inside the DSFM

Privacy Tools

Linux Hardening

OPSEC Techniques

Anonymity Networks

Books by Christopher Quinn

Practical cybersecurity books covering compliance, privacy, Linux hardening, healthcare security, and offensive cloud operations.

Unified Compliance book cover

Unified Compliance De Gruyter

A practical guide for bridging technical implementation and regulatory understanding in modern cybersecurity compliance.

Learn more