// Comparison

Gray Hat Hacking vs Les virus informatiques: Which Should You Read?

Two cybersecurity books on Reverse Engineering, compared honestly: who each is for, what each does best, and which to read first.

Advanced

4/52022

Gray Hat Hacking

The Ethical Hacker's Handbook

Allen Harper, Ryan Linn, Stephen Sims, Michael Baucom, Daniel Fernandez, Huascar Tejeda, Moses Frost

A multi-author breadth-first reference covering the modern offensive landscape: web, binary, hardware, IoT, mobile, cloud, and adversarial ML — the closest thing in print to a single-volume snapshot of where offensive security is.

Advanced

4/52009

Les virus informatiques

Théorie, pratique et applications

Éric Filiol

The reference French academic treatment of computer virology — the theory, algorithms and practice of viruses and malicious code — by Éric Filiol, a former military cryptanalyst and one of France's leading virologists.

Read this if

Mid-career pentesters and red teamers who need a single reference that touches every adjacent domain, plus students preparing for OSCP/OSEP-style breadth assessments. Each chapter is written by a domain practitioner and tends to be more current than the typical comprehensive textbook.

Students, researchers and serious malware analysts who want the formal, algorithmic foundations of viral code, not just tool tutorials. Filiol writes from deep cryptanalysis and military research experience.

Skip this if

Readers wanting depth in any single domain — every chapter is the start of a topic, not the conclusion. Also uneven by chapter, which is the cost of multi-author breadth; some chapters are excellent and some are surveys.

Beginners or readers wanting a practical malware-analysis walkthrough; it's rigorous, theory-first and mathematical, closer to a graduate text than a lab guide.

Key takeaways

Use it as a sampler menu: the chapters you don't already know are where the value is, and the bibliographies point at the deeper books.
The exploitation chapters age fastest; the IoT, automotive, and ML-security chapters are the strongest current reason to own this edition.
Best read as a 'what should I learn next' tool rather than as a sequential textbook.

The canonical French-language text on the theory of computer viruses, by a recognised authority.
Theory- and algorithm-first: formal models of self-reproduction, detection complexity, and viral techniques.
Best read after a practical malware book — it explains why the techniques work, not how to click through a sandbox.

How they compare

Gray Hat Hacking and Les virus informatiques are both rated 4/5 in our catalog. Pick by topic preference and reading style rather than by rating.

Both books target advanced-level readers, so the choice is about topic, not difficulty.

Gray Hat Hacking and Les virus informatiques both cover Reverse Engineering, so reading them in sequence reinforces the same material from different angles.

Keep reading