【Whitepaper】Cyber Threats against Taiwan’s 2024 Presidential Election
About Us

About Us


About TeamT5

TeamT5 was established in 2017 by 5 security professionals who firmly believe that Taiwan has world-class security talents.

TeamT5 consists of world-class cyber threat analysts with more than 20-year experience. Leveraging our geographic and cultural advantages, we have the best understanding of cyber attackers in Asia Pacific.

Based on our research in malware & Advanced Persistent Threat (APT), we provide cyber threat intelligence reports and anti-ransomware solutions to clients in the USA, Japan, and Taiwan. Clients include government agencies, financial business, telecom operators, high-tech enterprises, electronic manufacturing service companies, and managed security service providers(MSSP).

We’re also frequently invited to share our insights in top cybersecurity conferences - Black Hat (USA), Code Blue/ AVTokyo (Japan), Troopers(Germany), and other events organized by global organizations such as Hack In The Box, FIRST.

In 2022, TeamT5 has secured Series A funding as it looks to expand into the Japanese market. The round was led by JAFCO Asia, the Asia group company of the prevailing Japanese venture capital firm. Also participating were ITOCHU, one of Japan’s largest multinational corporations with many business units globally, as well as MACNICA, Japan’s predominant cybersecurity service provider.

Headquartered in Taiwan, TeamT5 has also established a subsidiary office in Japan to strengthen local sales activities, provide better service and support expansion of distribution.

In the future, we team up with global top partners to provide best cyber threat intelligence and related solutions for clients.

Core Value

The "T5" of TeamT5 stands for 5 English letters after the T of Taiwan. It also symbolizes that this Team is formed by 5 founders. We firmly believe in the possibility that the team can create greater value together.

We call ourselves Persistent Cyber ​​Threat Hunter. Under the vast threat intelligence network, we will not let any hacker threats pass through us.

This concept is concretized as we use the spider web as our logo. We do intelligence research and hunt threats. The diamond that exists in the middle symbolizes Diamond Model - a model often used to describe cyber attacks in threat intelligence research. The Diamond Model includes Adversary, Capability, Infrastructure, and Victim, which are all TeamT5’s research areas.

Today is an era when cybersecurity protection is valued by the public. As cybersecurity attacks & defenses come from the same root, we gather top technical talents with various skills to provide best service for our clients.

Our Global Footprints

We set up our offices in Taiwan and Japan to provide the best service for our Asia & Pacific clients. We also work with regional partners to provide threat intelligence reports.

We provide cyber threat intelligence reports and anti-ransomware solutions to clients in the USA, Japan, Korea, Singapore, Thailand, Vietnam, Philippines, and Taiwan. Clients include government agencies, financial business, telecom operators, high-tech enterprises, electronic manufacturing service companies, and managed security service providers(MSSP).

Awards
  • 2024: ThreatSonar Anti-Ransomware solution is awarded Computex Best Choice Award - Golden Award
  • 2023: Frost & Sullivan : 2023 Taiwanese Threat Intelligence Company of the Year Award
  • 2022: BSI International Organizational Resilience Awards - Elite Award
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Our Leadership
Sung-ting Tsai (TT)
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
Cyber Threat Intelligence Analysts

Our threat intelligence analysts 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.

Engine Lab

We have top tech talents specializing in reverse engineering, low-layer operating system analysis and kernel hacking. With advanced techniques, Engine Lab is key to the development of our proactive threat hunting tool - ThreatSonar. We aim to develop stable and effective threat hunting solutions, and keep enhancing the detection quality of our products.

D39 - Vulnerability Research Expert

D39 focuses on vulnerability research and has identified several critical security flaws, dedicating to Common Vulnerabilities and Exposures (CVE) and Samsung Vulnerabilities and Exposures (SVE). D39 is also a frequent speaker in the world’s top security conferences, including Black Hat, HITCON, and Power of Community (POC). As a team member of HITCON, D39 joined forces to win second place in DEFCON CTF both 2014 and 2019.

Incident Response Team

With solid technical background and frontline expertise, our IR professionals provide an in-depth investigation and response to real-world cyber-attacks. We identify and research the intruder attacks, the impact and technical cause of the incidents, and recommend solutions or workarounds to assist our clients in recovery and remediation.

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