About Shield

Shield is a reference knowledge base on operational security — protecting identity, devices, data, communications, and travel. Field-adapted. No marketing bullshit.

Why this site exists

Most cybersecurity content available either addresses technicians (presupposing specialist knowledge) or a mass audience (reducing to copy-pasted checklists). Between the two, there is almost nothing for an executive, lawyer, journalist, or exposed manager who wants to understand the mechanics of a risk and decide what applies to their threat model.

Shield documents practices observed and applied in the field — in M&A, litigation, geopolitical, and post-incident contexts. Everything is readable by a non-specialist. Everything is sourced from primary sources: RFCs, official publications (ANSSI, CNIL, ENISA, NIST), research papers, vendor documentation.

Who publishes Shield

Shield is published by Privateer, a technical strategy consultancy for executives, based in Angers, France. Privateer supports executives and their organizations on technology, security, infrastructure, team organization, and operations in constrained environments.

Articles are written by François Aichelbaum, CEO of Privateer.

Editorial approach

• No commercial marketing. No product promotion, no "10 must-have tools", no affiliation.
• Honesty about limits. When a measure is useless in a threat model, we say so.
• Primary sources only. No aggregators, no secondary rewrites.
• Regular review. Each article carries a last-review date. Content ages, we maintain it.
• No cookies, no tracking. No third-party analytics, no pixels. See the privacy policy.

Languages

Shield is published in French (default) and English. English versions are marked as translated with AI assistance and reviewed by a human.

Roadmap: German, Spanish, Italian, Japanese.

Contact

For an editorial question, an article suggestion, or to flag outdated content: contact.