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Learn how hackers think.

One email per week. Cybersecurity insights, the tools I build, and lessons from the field — written the way I’d explain them to a friend over coffee.

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What you get

Field-tested security.

Practical cybersecurity — not fear-mongering. The patterns, tools, and techniques I actually use.

Tools I build.

Early looks at what I’m shipping, what broke along the way, and the decisions behind the decisions.

A hacker’s notebook.

Short lessons from taking systems apart: what they teach, what they hide, and what I do about it.

Recent writing

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Companies are just patches

A company is just a system fix, shipped at scale.

Oct 17

My First Time at Black Hat & DEF CON

A French entrepreneur’s take on the world’s most famous hacker conventions

Sep 1

From

Florian Amette

F4K

French cybersecurity entrepreneur. I take systems apart and rebuild them better, then write down what I learn. The newsletter is the shortest version of that.

Questions

How often will you email me?: Once a week, on average. No more. If I skip a week I skip it — I won’t manufacture content to hit a schedule.
What’s in a typical issue?: A short essay or breakdown: a cybersecurity insight, a tool I’m building, or a lesson from recent work. Usually 2–4 minutes to read.
Will you share my email?: No. It stays with me and the tool I use to send (Resend). Unsubscribe is one click, always at the bottom.
Is it in English or French?: Currently English. If you prefer French, subscribe here: /fr/subscribe.

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