Threat Intelligence Pioneer, Born in Asia

Who We Are

• Our Leadership

  Sung-ting Tsai (TT)

  As the founder and CEO of TeamT5, Sung-ting Tsai (TT) has more than 16 years of experience in the security industry. With solid technical background and strong understanding of cyber threats, TT has been leading the team to develop unique and effective threat hunting technologies and solutions. With great passion for cyber security, TT has also volunteered himself as a core member in the HITCON community, and was one of the founding members and the first chairman of HITCON. Moreover, TT is an internationally recognized expert on cyber threat intelligence and advanced information security technology. He frequently publishes his latest research at the world’s top information security conferences, including Black Hat, Code Blue, Kaspersky Security Analyst Summit, etc.

  

• Our Cyber Threat Experts

  Our threat intelligence experts have been dedicated to malware research and APT investigation for more than 20 years. With language and cultural advantages, we possess specific expertise in cyber espionage in the Asia-Pacific region. We are also frequent speakers in the world’s top security conferences, including Code Blue/AVTokyo, Troopers, Hack In The Box, FIRST, etc.

  

• Our Development Team Members

  TeamT5’s R&D team drives cybersecurity innovation through advanced threat research, malware analysis, and threat hunting. By closely tracking real-world adversaries, the team turns intelligence into practical detection and defense solutions, helping organizations strengthen resilience against evolving cyber threats—especially across the Asia-Pacific region.