About

Security intelligence built to guard family assets

Keystone Guardian is based in Hong Kong and serves family offices and high-net-worth individuals with cross-border holdings. In the age of AI, the risk to a family is no longer just a “hacked system” — it is AI impersonation, email tampering, key compromise and data exposure. These act on people, process and assets, and require verifiable protection rather than a pile of tools.

So we deliver in exactly one way: map exposure, harden as needed, then guard year-round. Every step leaves verifiable records and reports, so a family always knows where its security boundary stands.

Credentials
  • CISSP

    Certified Information Systems Security Professional

  • CISA

    Certified Information Systems Auditor

  • CISP

    Certified Information Security Professional

  • CCIE

    Cisco Certified Internetwork Expert

  • OSCP

    Offensive Security Certified Professional

Commitments
  • Strict confidentiality, NDA signed
  • Sensitive identifiers encrypted at rest
  • Bilingual and responsive

Start with a security audit

LEO GONG · CISSP · CISA · CISP · CCIE · OSCP / leog@keystoneguardian.com / +852 9551 1011

Book a security audit