[Speakers]
Adversary Village at
DEF CON 33

Tay Sze Ying

Head of Cyber Threat Intel & Hunting Advanced Cyber Capabilities at Home Team Science & Technology Agency (HTX)

Sze Ying is the Head of Cyber Threat Intelligence and Hunting with Home Team Science and Technology Agency. Sze Ying started off as a system engineer managing the public key infrastructure for certificates before pivoting into red and blue teaming. With 12 years of ICT security experience under her belt in both private and public sector, her areas of expertise include digital forensics and incident response, threat hunting and threat intelligence.

Panel discussion: Modern defenses, ancient problems! Why adversaries can still break cyber defenses

Saturday | Aug 9th 2025
DEF CON Adversary Village workshop stage | Las Vegas Convention Center

Adversary Guru Panel
Adversary Simulation

With all the modern security tools at our fingertips, you would think attackers would have a harder time. But year after year, they keep getting in, often using the same techniques they have used for decades. This panel takes a real-world look at why high-tech defenses still fall to low-tech tactics. We will talk about where things break down, why the basics still matter, and how defenders can rethink their approach to stay ahead of persistent threats.

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