About
The examiner behind the evidence.
Ryan Purita is the principal examiner at Sherlock Forensics in Vancouver BC. He holds CISSP-ISSAP and ISSMP certifications and has over 20 years of experience in digital forensics and cybersecurity. He is a court-qualified expert witness in computer forensics across multiple Canadian jurisdictions.
Principal Examiner
Ryan Purita, CISSP-ISSAP, ISSMP
Ryan Purita founded Sherlock Forensics in 2006 and has served as its principal digital forensic examiner for over two decades. He has conducted thousands of forensic examinations spanning criminal prosecution, criminal defence, civil litigation, corporate fraud and regulatory compliance.
Ryan has been a Certified Information Systems Security Professional (CISSP) since 2002 and holds the ISSAP (Information Systems Security Architecture Professional) and ISSMP (Information Systems Security Management Professional) concentrations. He is co-author of No Hiding Place in Cyberspace with David Crear of Borden Ladner Gervais LLP.
His forensic findings have been admitted as evidence in BC Supreme Court, BC Provincial Court and Newfoundland Provincial Court. He has been qualified as an expert witness in computer forensics and security in each of these jurisdictions. For case details see the expert witness page.
Training & Credentials
Certifications that withstand cross-examination
Ryan's credentials are validated through rigorous examination and decades of continuous professional development. These certifications are regularly tested under cross-examination in court.
Certified Information Systems Security Professional
Issued by (ISC)². Held since 2002. Eight domains of security architecture, engineering and risk management.
Information Systems Security Architecture Professional
Advanced (ISC)² concentration in security architecture and design.
Information Systems Security Management Professional
Advanced (ISC)² concentration in security management and leadership.
Advanced Specialty Certificate in Forensic Investigations
Completed with Distinction at the British Columbia Institute of Technology.
EnCase Forensic Training
Guidance Software (now OpenText) certified training in EnCase forensic examination.
AccessData FTK Training
Certified training in Forensic Toolkit (FTK) analysis and evidence processing.
Mobile Forensics
Specialized training in mobile device forensic acquisition and analysis.
Cisco Certified Network Associate
Cisco certification in networking fundamentals and network exploit analysis.
Security Work
Penetration testing, compliance and vulnerability research
Alongside the forensic practice, Sherlock Forensics tests, audits and defends systems for organizations across Canada. Penetration testing joined the service portfolio in 2010 and incident response has run 24/7 since 2018.
Penetration testing
Network, web application, API and cloud penetration testing following PTES and OWASP methodologies. Internal tests run through ShadowTap, a preconfigured device shipped to your office that tunnels back to our testing environment. See the internal penetration testing methodology.
Compliance auditing
Penetration tests mapped to the controls your auditor checks: SOC 2 Trust Services Criteria, PCI DSS 4.0 Requirement 11.4, CMMC readiness against NIST SP 800-171 and one engagement mapped across SOC 2, PCI DSS, ISO 27001 and PIPEDA. For teams shipping code written with Copilot, Claude or ChatGPT, an AI code security audit finds hallucinated packages, hardcoded secrets and injection flaws before production.
Vulnerability discovery
Sherlock Forensics Labs does original vulnerability research and reports what it finds through coordinated disclosure with a 90-day window. The status of every finding lives on the public Disclosure Tracker, and full technical detail publishes there when each window closes. The lab's hands-on workflow also drives the Sherlock EoP Auditor, a Windows local privilege escalation scanner with early access open.
Incident and zero-day response
24/7 incident response for ransomware, business email compromise and network intrusions, following NIST SP 800-61. Retainer clients get a guaranteed SLA and an annual penetration test. When a critical exploit drops, zero-day emergency response starts with an assessment under a 4-hour SLA.
Sherlock Forensics works remotely by phone and Google Meet. When a computer cannot be shipped, we come on site to image it.
Tools we build. The same casework produces the Sherlock Forensics tool catalog, from the PST Viewer and Android Acquirer to the iPhone and iPad Analyzer and the Sherlock EoP Auditor. See every tool on the forensic tools page.
Recognition
Awards and nominations
- Canada's Top 40 Under 40
- Nominated three times (2004, 2005 and 2008) for national leadership and achievement.
- Business in Vancouver 40 Under 40
- Two-time honouree recognizing business leadership in British Columbia.
- Canadian IT Hero Nominee
- Nominated by the Information Technology Association of Canada (ITAC) in 2005.
Expert Witness
Court-qualified in computer forensics and security
Ryan Purita has been qualified as an expert witness in BC Supreme Court, BC Provincial Court and Newfoundland Provincial Court. He has testified in matters involving computer forensics, digital security, mobile forensics and internet infrastructure for both prosecution and defence.
Public Profile
Media and speaking
Ryan has appeared as a cybersecurity expert on CBC Marketplace (three appearances), Global National with Kevin Newman, CTV and Breakfast Television. His analysis has been quoted in the Globe and Mail, National Post, Vancouver Sun and dozens of other publications.
He has presented at the Institute of Internal Auditors IT Conference in Orlando, the Security & Privacy Conference in Victoria and the Canadian Bar Association Criminal Subsection among other events.
History
Two decades of security and forensic work
Standards & Frameworks
Aligned to recognised authorities
- NIST
- NIST Cybersecurity Framework (CSF 2.0) - Risk management and incident response alignment
- MITRE ATT&CK
- MITRE ATT&CK Framework - Adversary tactics and techniques reference for threat modelling
- (ISC)²
- (ISC)² Cybersecurity Certifications - CISSP, ISSAP and ISSMP certification body
- SANS / GIAC
- SANS Digital Forensics and Incident Response - Training and certification body
Service Areas
Serving clients across Canada
Sherlock Forensics is headquartered in Vancouver with remote cybersecurity services available nationwide. We provide penetration testing, digital forensics and incident response to organizations in major Canadian cities.
- Edmonton cybersecurity for oil and gas, government and technology sectors
- Halifax digital forensics and Atlantic Canada incident response
- Montreal cybersecurity for Quebec financial and technology organizations
- Ottawa cybersecurity for government and defence sector clients
- Winnipeg digital forensics for Manitoba businesses
We also provide specialized services for educational institutions, government agencies, logistics companies and manufacturing organizations.
FAQ
Frequently Asked Questions
Get Started
Ready to test your defences or secure your evidence?
Order a penetration test, security audit or forensic examination online. No calls required.
Next Step
Engage our team
For penetration testing, incident response, forensic analysis or expert testimony, contact Ryan Purita and his team.
