Weekly Security Insights

Stay Sharp.
Hack Smarter.

Real offensive security techniques for pentesters, bug bounty hunters, and OSCP aspirants. No fluff. Just actionable knowledge.

What You'll Get

No endless payloads. Just practical tactics you'll actually use when auditing real systems. Each week, get actionable insights from real offensive security work.

Real-World Techniques

Tactics you'll remember and reuse in actual pentests and CTFs

Tools & Tactics

Latest tools, hacker mindset, and methodology breakdowns

Multi-Domain Coverage

Web2/Web3, mobile hacking, Active Directory, and more

Sunday Security Drops

Weekly newsletter delivered every Sunday to your inbox

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📰 Newsletter Archive

Explore all previous newsletter editions with weekly offensive security insights

Frequently Asked Questions

Everything you need to know about Kayssel's newsletter

When is the newsletter published?

The newsletter is published every Sunday. You'll receive fresh offensive security content to start your week with updated knowledge.

What type of content does it include?

Each edition varies—it might cover hacking techniques I've been exploring, useful tips I've discovered, interesting tools, or insights that could be valuable for offensive security practitioners. Every newsletter brings something different based on what I'm learning and testing.

Is it free?

Yes, Kayssel's newsletter is 100% free. Just subscribe with your email and you'll start receiving quality content every Sunday.

Can I unsubscribe anytime?

Absolutely. Every email includes an unsubscribe link. You can opt out at any time with no hassle.

Who is this newsletter for?

For pentesters, bug bounty hunters, OSCP students, and anyone interested in offensive security who wants to stay updated with practical and actionable techniques.