Patrick Biernat

Security Researcher @ret2systems

[RET2 Systems @ret2systems]

We're excited to announce a new session of our Asynchronous Training: The Fundamentals of Browser Exploitation!💻💥🌐

📆Start Date: September 15th, 2025
🗺️Location: Remote / Self-Paced
✈️Booking and full info: https://t.co/4Ok2xrwqxm

[RET2 Systems @ret2systems]

What does it take to hack a @Sonos Era 300 for Pwn2Own?

Take a look at our process of adapting existing research, establishing a foothold, and exploiting media parsers for unauthenticated RCE over the network🔥👇

https://t.co/FxSbV3uEBp

[RET2 Systems @ret2systems]

New blogpost! Want to see how we exploited @Synology network-attached-storage devices at Pwn2Own Ireland?

RCE to root via out-of-bounds NULL-byte writes, click the embed for a fun little writeup of CVE-2024-10442 🔎🎉

https://t.co/VOhC5NSCat

[offensivecon @offensive_con]

We are proud to announce our first keynote, Perri Adams! @perribus

[itszn @itszn13]

Claude reversing a binary using Binary Ninja via MCP while I get a snack

@bl4sty
@ziyadedher
@vector35

[RET2 Systems @ret2systems]

Be ambitious, do absurd things. Full-stack Reverse Engineering of the Original Microsoft Xbox from the inaugural @REverseConf (2025) is now available to stream on YouTube.

Watch it here: https://t.co/98V55PCKaI

[RPISEC @RPISEC]

📥 Hack the Vote registration is now live: https://t.co/LSIp6CG5kg! Go sign up! 💿

[TrendAI Zero Day Initiative @thezdi]

Confirmed! Jack Dates of RET2 Systems (@ret2systems) used an OOB Write to get a shell and a modified login page on the Synology DiskStation DS1823xs+. His second round win nets him $20,000 and 4 Master of Pwn points. #Pwn2Own #P2OIreland

[TrendAI Zero Day Initiative @thezdi]

Confirmed! Jack Dates of RET2 Systems (@ret2systems) used a single Out-of-Bounds (OOB) write to exploit the #Sonos Era 300 speaker. He earns himself $60,000 and 6 Master of Pwn points. #Pwn2Own #P2OIreland

[RET2 Systems @ret2systems]

If a zero-day exploit hits your @Sonos smart speakers and nobody is around to hear it, will they really make a sound? 👀 Find out next week at #Pwn2Own Ireland! #RCE #exploit #0day

[RET2 Systems @ret2systems]

A new, high-production, US-based security conference dedicated to reverse engineering & program analysis. Something like this is long overdue, sharing nothing but hype for this conference 🚀🎉

[RET2 Systems @ret2systems]

Part 2/2 of our Pwn2Own Automotive exploit writeup for the Phoenix CHARX is now out 🎉

This second post explains how we remotely bypassed ASLR and COP'd our way to a shell. It even includes a GitHub link to the full exploit code. Enjoy!

https://t.co/LX049PsJ92

[RET2 Systems @ret2systems]

A few months back we submitted two exploit chains to the first ever Pwn2Own Automotive competition.

We just released a blogpost (part 1 of 2) detailing the bugs we abused to remotely exploit the Phoenix CHARX industrial EV charger and win $60,000 🔥🔥

https://t.co/HmRCIzJm0E

[RET2 WarGames @ret2wargames]

This upcoming self-guided hardware hacking course should be awesome, Matt is a top-notch instructor with great materials 👇👇

[RET2 WarGames @ret2wargames]

We just added "Mission #0" to our fundamentals of software exploitation training platform🥳

It's a new challenge that combines both reverse engineering and exploitation to comprehensively test your skills on the classical topics of our course: https://t.co/v7hxbEty6H

[RET2 WarGames @ret2wargames]

In addition to rolling out training certificates for professionals, RET2 WarGames now offers a lower cost access tier for independent researchers interested in learning binary exploitation through a structured curriculum at-home 🏡🔥

[RET2 WarGames @ret2wargames]

We're now offering professional certificates for completing our fundamentals of software exploitation course on RET2 WarGames! 🎉😱

It'll be challenging, but arguably one of the most rewarding cybersecurity certificates you can hope to obtain: https://t.co/vPnWouYLK7

[RPISEC @RPISEC]

On the passing of our dear friend and alumni, Sophia "quend" d'Antoine (@Calaquendi44)

[RET2 Systems @ret2systems]

RET2 is an @RPISEC corporation. Sophia was deeply important to our own founding team, pushing our resolve to embrace the total unknown. RET2 simply would have never manifested had we not been friends.

She was beyond remarkable. Her passing weighs heavily on our hearts.

[Marko Mladenovic @bugdigger]

A little month than month ago i finished the wargames challanges by @ret2systems.
Before this course i had 0 knowledge regarding low-level exploitation techniques, mitigations and bypass strategies.
The course really pushes you and gives you knowledge required to break into VR💯