NEW COURSE DROP: Binary Exploitation 201 CVE-2026-0417 patch notes in the Journal Live AMA with kernel dev "mel0dy" — Thursday 19:00 UTC Root Summit tickets on sale now 7,412 members online NEW COURSE DROP: Binary Exploitation 201 CVE-2026-0417 patch notes in the Journal
Issue Nº 147 April 2026 Est. Zürich 2019
★ Members' issue Nº 147 ★

Learn it.
Break it.
Defend it.

A hub for security practitioners, hobbyists, and the endlessly curious. Courses taught by working professionals, how-tos written by people who actually broke things, and a journal that reads like your smartest friend’s notebook.

100% ad-free ✦ forever
★ 7.4k members
§ 01 · Courses · taught by humans who ship

Pick a rabbit hole.

§ 02 · Professionals · people you’ll learn from

The instructors.

◥◣

Dr. Mira Aoki

Exploit Dev / Tokyo

Former Pwn2Own finalist. Writes about memory corruption like other people write about wine.

@m_aoki6 courses
▲▼

Lucía Navarro

Cryptographer / Madrid

Teaches crypto without the math panic. Maintains three FOSS libraries you’ve probably used.

@lunav4 courses
◐◑

Tobi Okafor

Blue Team Lead / Lagos

Runs a SOC for a Nigerian fintech. Believes detection engineering is half craft, half theater.

@t_okafor3 courses
╳╳

Jae-won Park

Kernel Hacker / Seoul

Filed 41 CVEs against the Linux kernel last year. Still insists he’s "just getting started."

@jwp2 courses
§ 03 · How-to · learn a thing, today

Short, weird, useful.

§ 04 · The Journal · long reads, hot takes

From the notebook.

14 April 2026 · 22 min read

The post-quantum panic is coming. Here’s what to actually do.

A calm, practical guide to migrating your systems before the deadline that isn’t a deadline — and why you probably have more time than LinkedIn says you do.

Field report

I spent a month inside a fake SOC

What I learned pretending to be an analyst at a fictional bank, in a red team exercise that got uncomfortably real.

11 Apr · 9 min
Opinion

CVSS scores are vibes. Let’s admit it.

A grumpy but affectionate takedown of the industry’s favorite pseudo-science.

9 Apr · 6 min

Join the hub.
It’s free.

A weekly dispatch with the best courses, guides, and one weird thing we found on the internet. No spam, no tracking, no nonsense.

4,218 readers · unsubscribe anytime