The principal-led practice model
The structure is the same as a law firm partner's practice or a surgeon's practice: the principal sets the methodology and reviews every case; the senior practitioner team, led by the technical consultant, executes the work under that methodology. Quinnlan Varcoe is Founder and CEO. She owns case judgment, oversees Alex Riffenburgh and the practitioner team, and reviews every engagement before findings leave the practice. She holds 15 active certifications across GIAC, AWS, Splunk, CompTIA, including GCIH, CySA+, and GCIA. The methodology is court-admissible. Quinn is the named expert witness on litigation engagements covering family law, commercial litigation, and IP disputes.
The practice operates on a principal-led model. Quinn owns case judgment, methodology, and final report. Alex Riffenburgh, Co-Founder & CTO, oversees the practitioner team that executes the technical work under Quinn's methodology. The AI agent (Witness) scales the procedural work that previously consumed senior-analyst hours.Nothing leaves the practice without principal review.
The 15 certifications
Quinn's credential mix is what supports court qualification on the litigation side and credible methodology on the enterprise side. Every certification listed here isactive and verifiable directly with the issuing body. Lapsed certifications are not shown.
- GCIH: GIAC Certified Incident Handler (GIAC)
- GCCC: GIAC Critical Controls Certification (GIAC)
- GCSA: GIAC Cloud Security Automation (GIAC)
- GMOB: GIAC Mobile Device Security Analyst (GIAC)
- GPYC: GIAC Python Coder (GIAC)
- GFACT: GIAC Foundational Cybersecurity Technologies (GIAC)
- GISF: GIAC Information Security Fundamentals (GIAC)
- GCIA: GIAC Certified Intrusion Analyst (GIAC)
- GSEC: GIAC Security Essentials (GIAC)
- SPLK Power User: Splunk Core Certified Power User (Splunk)
- SPLK User: Splunk Core Certified User (Splunk)
- SAA: AWS Certified Solutions Architect Associate (AWS)
- CSAP: CompTIA Security Analytics Professional (CompTIA)
- CySA+: CompTIA Cybersecurity Analyst (CompTIA)
- Sec+: CompTIA Security+ (CompTIA)
Court-admissible methodology
Evidence is preserved using forensically sound acquisition methods. Chain of custody is documented. Methodology aligns with FRE 901 and FRCP 26. Reports are written for non-technical decision-makers but defensible under technical scrutiny in deposition or trial. Quinn is qualified to testify under Daubert and Frye standards on the work product. Witness, the AI agent, operates inside that same methodology under principal review.
Expert-witness work
Expert witness engagements cover family law, commercial litigation, IP disputes, breach-causation matters, and arbitration. Available for deposition, hearing, andtrial. Available for rebuttal of opposing-counsel forensic reports. Engagements are structured under the retaining attorney's privilege.
How an engagement begins
- Confidential consultation. NDA-protected. 30 to 60 minutes. Direct conversation with Quinn. No sales process.
- Scoped engagement. Written proposal with defined deliverables and pricing. Per-case, hourly with milestone caps, or subscription depending on what fits.
- Investigation, review, and findings. Court-admissible standards. Written report you can act on, reviewed and signed off by Quinn.
What we will not do
- Publish a finding Quinn has not reviewed.
- Run a single automated scan and email you a one-line result.
- Take cases where simpler steps (police report, IC3 filing, platform-native recovery) would resolve the situation. We will tell you and decline.
- Promise outcomes we cannot prove.
- Bill for work that was not scoped or approved in writing.
Why this work matters
Cellebrite and Belkasoft licensing costs $10K to $30K per year per analyst, which forces traditional forensic services to charge $5K to $15K per case. The people who need help most get priced out. Witness, the AI agent layered on this practice, extends court-grade methodology to consumer pricing tiers. Quinn still owns case judgment.
