Raptor
0xdeadbeef dot info.

"A chain is only as strong as its weakest link." -- Charles A. Lindbergh
"I have seen the fnords." -- Historical graffiti on Anarchy Bridge, UK
"Testing can prove the presence of bugs, but not their absence." -- Edsger W. Dijkstra
"The enemy knows the system." -- Claude E. Shannon
"Perfection is achieved when there is nothing left to remove." -- Antoine de Saint-Exupery
"The GNU people aren't evil." -- /usr/src/linux/Documentation/CodingStyle
"You can't argue with a root shell." -- Felix "FX" Lindner
"The only limit to malloc exploitation is the imagination." -- Qualys Research Team
"Never whistle while you're pissing." -- Hagbard Celine
"When cryptography is outlawed, bayl bhgynjf jvyy unir cevinpl." -- Anonymous

Fnord!

[0x01] Who's raptor?

I'm Marco Ivaldi, a seasoned security researcher and tech leader with over 25 years in offensive security. As a polyglot programmer of weird machines, I study how things can go wrong. I've hacked on everything from old-school X.25 networks to modern mobile apps. These days I'm the technical director and co-founder of HN Security, a boutique firm specializing in tailored security assessments.

My journey began in the '90s, when I co-founded Linux&C, the very first Italian magazine about Linux and open source. Along the way, I've contributed to the OSSTMM, published in magazines like Phrack, co-authored several books including Hacking Exposed Linux, and presented my research at international conferences such as Infiltrate. In recognition of my contributions I was recently named a Most Valuable Security Researcher by Microsoft and have competed as a Zero Day Quest hacker.

This is my personal homepage. Feedback is welcome at <raptor[at]0xdeadbeef.info> (PGP key).

[0x02] Publications

Books Articles Honors and Awards Related Works

[0x04] Talks

Presentations Interviews

[0x08] Vulnerabilities

Linux OpenSSH X.Org Azure Solaris Zyxel Zephyr RT-Thread ThreadX RIOT Others

[0x10] Exploits

Linux Solaris/SPARC Solaris/x86 AIX OpenBSD Zyxel Oracle MySQL Miscellaneous

[0x20] Tools

Vulnerability Research New School Old School Other Rust Stuff Exploitation Esoteric

[0x40] Configurations

Packet Filters Application Firewalls Virtual Private Networks

[0x80] /dev/random

Random Stuff
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Copyright (c) 1998-2025* Marco Ivaldi at 0xdeadbeef dot info. Icons by Icons8. *27 years #StillHacking!