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Since our inception,
SYON Security has been totally
focused on building a consultancy team that truly understands your adversaries.

SYON Security Limited was established in Hong Kong to combat the limited supply of highly advanced cyber security experts within Asia Pacific. SYON's goal is to increase awareness within the Asian markets, and drive a technical community that is passionate towards technical research and threat-informed defense.

From Penetration Testing and full-scope Red Team Cyber Attack Simulations, through to our specialist Incident Response services, SYON infuses the adversarial mindset into each and every engagement. SYON boasts a world-class team that is ready to assess your organization's capability to defend against Advanced Persistent Threats (APT) and provide guidance to improving your overall cyber security strategy.

SYON understands the threats that targeting your business, and can provide a practical approach towards cyber security. Our services can provide your executive management with the necessary insights into your real cyber security posture, to develop strategic defense plans to protect your organization.

Technical Expertise.


Offensive Security Certified Professional (OSCP)

Offensive Security Certified Expert


A team of industry leading speakers, and highly certified experts.

Offensive Security Experienced Penetration Tester


Certified Red Team Master

Certified Red Team Expert (CRTE)

MITRE ATT&CK Defender: Cyber Threat Intelligence Certification


MITRE ATT&CK Defender: Security Operations Center Assessment Certification



MITRE ATT&CK Defender: Adversary Emulation Methodology Certification



GIAC Certified Penetration Tester (GPEN)


GIAC Exploit Researcher and Advanced Penetration Tester (GXPN)

Hack The Box RastaLabs

Hack The Box Offshore

Hack The Box APTLabs


SnoopCon 2016 & 2017

BSides Manchester 2017

SteelCon 2017

HITB GSEC 2017 & 2018 SRC

Conference 2018

SecLover Security Conference 2018

InfoSec in the City Singapore 2019

DragonCon 2018

FinTech Security Conference 2018

Palo Alto Networks' Cyber Security Summit Keynote 2019

FinTech Security Conference 2018


iTrust Critical Infrastructure Security Showdown (CISS) 2022

Including Finals

iTrust Critical Infrastructure Security Showdown (CISS) 2023

Including Finals

SYON participates in select Capture the Flag (CTF) competitions on an annual basis.

The Critical Infrastructure Security Showdown is sponsored by Cyber Security Agency of Singapore (CSA) co-organised with the Ministry of Defence, Singapore (MINDEF).



Since 2024, SYON has attained membership within the
Hong Kong China Network Security Association.

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