// Comparison

À la trace vs Anonymat sur Internet: Which Should You Read?

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

Beginner
4/52020
À la trace

Enquête sur les nouveaux territoires de la surveillance

Olivier Tesquet

An investigative map of modern surveillance — from data brokers and facial recognition to contact-tracing — charting how continuous digital tracking became normal, by a French tech journalist.

Beginner
3/52014
Anonymat sur Internet

Protéger sa vie privée

Martin Untersinger

A practical French guide to online anonymity and privacy — proxies, VPNs, Tor, secure messaging and mobile — by a Le Monde cybersecurity journalist (later one of the Pegasus reporters).

Read this if

Readers who want a sharp, up-to-date investigation into the surveillance economy and state tracking, with concrete cases rather than abstraction.
Non-experts who want concrete, post-Snowden steps to protect their privacy online, explained clearly by a journalist who covers the field.

Skip this if

Anyone after technical countermeasures; it's surveillance journalism and analysis, not a privacy how-to.
Security professionals wanting depth, or anyone needing 2025-current tooling; it's a 2014 guide, so specific tools and threat models have moved on.

Key takeaways

  • A 2020 investigative cartography of the new surveillance — data brokers, facial recognition, tracing.
  • Tesquet reports with specifics, making the abstract surveillance economy concrete.
  • Read for the landscape and the cases; pair with Nitot/Untersinger for what to do about it.
  • A clear, practical French primer on online anonymity for ordinary users.
  • Written by Untersinger (Le Monde), later a Pegasus revelations reporter — credible and grounded.
  • From 2014: the principles hold (Tor, VPNs, messaging), but verify specific tools against current advice.

How they compare

We rate À la trace higher (4/5 against 3/5 for Anonymat sur Internet). For most readers, that means À la trace is the primary pick and Anonymat sur Internet is a useful follow-up.

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

À la trace and Anonymat sur Internet both cover Privacy, so reading them in sequence reinforces the same material from different angles.

Keep reading

Related topics