In this episode, we learn about Nemi's journey—from how he got started, to building his anti-cheat solutions, and working at top gaming firms. We discuss the anti-cheat industry, the future of anti-cheat, and game integrity. During the episode, Nemi shares practical tips on professionally pursuing a career as a game hacker and answers some community questions. This episode is full with valuable insights and actionable advice for game hackers.

Who is Nemi?
​Nemanja Mulasmajic, also known as Nemi, is known for his work in developing Hyperion, an anti-cheat solution that was later acquired by Roblox. Nemi began his career in information security at the Department of Defense. However, he soon realized his passion for video games, which led him to transition into the gaming industry. He landed his first job at Blizzard Entertainment, where he built to anti-cheat systems that protected Overwatch. Nemi then joined Riot Games, where he built a new prevention and detection solution for League of Legends. Today, Nemi continues his work in security as part of the Roblox team.

Early Tech Influences and Technical Background​
Nemi was playing World of Warcraft in 2005 but couldn’t afford the monthly subscription. So, Nemi wanted to figure out how to play this game that everyone was playing. He started looking into World of Warcraft private servers, which gave him his start in this whole industry. Nemi began learning how to create private servers for World of Warcraft and learned a lot from the community. Later, Nemi pursued a computer science degree and landed a job in security at the Department of Defense. From there, he wanted to combine his love for the gaming industry and security. So, he applied to gaming studios, got rejected by Riot Games, but was accepted into Blizzard Entertainment. And, ladies and gentlemen, the rest is history.

Nemi's Public Contributions​
⁠BlackHat 2018 Talk: Why So Spurious? How a Highly Error-Prone x86/x64 CPU "Feature" Can Be Abused to Achieve Local Privilege Escalation on Many Operating Systems⁠⁠Systems and methods for anti-cheat detection Patent⁠⁠Nemis blog about general reverse engineering, security research, Windows internals, and system architecture.⁠
What led the creation of Byfron Technologies?​
After Vanguard shipped its anti-cheat, Nemi began contemplating what was next for him and how he could make a bigger impact in the gaming industry. Together with his co-founder at the time, Clint, they started brainstorming. Before leaving Riot, they pitched Riot's C-level executives the idea of productizing Riot's internal anti-cheat systems for the broader gaming industry. Unfortunately, their pitch was rejected. As a result, Nemi decided to leave and started Byfron, an anti-cheat company aimed at providing tools to the gaming industry. Byfron lasted for only about a year before being acquired by Roblox. During that time, they created Hyperion, a user-mode binary hardening tool designed to make reverse engineering games, detecting code injection, and other forms of tampering significantly more challenging.

The Future of Anticheat
​As discussed during the episode, Nemi says the future of anti-cheat will involve combining multiple layers, being platform-specific, and placing a significant focus on user trust. Any modern anti-cheat solution will need to be focused on prevention, detection, and deterrence. Kernel-mode anti-cheats are becoming increasingly common. Additionally, hardware based solutions like ⁠TPM ⁠are expected to grow in importance, potentially leading to queue segregation, where players with stronger security setups are placed in trusted environments. Watch the full episode to learn more!

GuidedHacking Byfron Thread​
https://guidedhacking.com/threads/robloxs-byfron-anti-cheat-a-new-era-of-fair-play.20369/

Connect with Nemi​
https://x.com/0xNemi
https://www.linkedin.com/in/0xnemi/

Roblox Anti-Cheat Engineer and Ex-Founder of Hyperion Anti-Cheat Explains It All

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