Witness. AI agent for consumer digital forensics.

The structure is the same as a law firm partner's practice or asurgeon'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 ofWitness, the AI agent for consumer digital forensics. She owns case judgment, oversees Alex Riffenburgh and the practitioner team, and reviews every case before findings leave the practice.

She holds 15 active certifications across GIAC, AWS, Splunk, and CompTIA, including GCIH, CySA+, and GCIA. Her methodology iscourt-admissible and she is the named expert witness on litigation engagements covering family law, commercial litigation, and IP disputes.

Before founding the practice, she worked in incident response and threat intelligence for Fortune 50 enterprises and the defense industrial base. HerLinkedIn audience of 26,000 is the primary trust-building channel for the practice.

Witness is the productized version of that practice. Quinn owns case judgment. The AI agent scales the procedural work that previously required senior-analyst hours.

Alex Riffenburgh is Co-Founder & CTO. OSCP-certified offensive security professional with experience across red teaming, penetration testing, digital forensics, and AI security. She works directly with individuals and small businesses to identify real risk, respond to active incidents, and harden accounts and devices after the fact. The approach is hands-on, the methodology is practical, and the deliverables are written for the people paying for them. At Witness she coordinates technical growth across the practice and the Witness AI agent. Quinn leads the practice and final case judgment. Engagements are delivered under the legal entity Blueberry Security Global, Inc.. Alex's LinkedIn is linkedin.com/in/alex-riffenburgh-918881187.