Cybersecurity Expert Witness

We provide cybersecurity expert witness testimony for litigation involving network security, data breaches, incident response, digital forensics, and security architecture. Cybersecurity disputes frequently center on breach causation, security standard compliance, vulnerability exploitation, or forensic evidence integrity. We analyze network logs, security configurations, forensic images, incident response records, and source code to provide defensible opinions on infringement, trade secret misappropriation, and breach of contract claims.

Common Disputes We Handle

Cybersecurity Patent Disputes Infringement and invalidity analysis for patents covering intrusion detection systems, encryption methods, authentication protocols, threat detection algorithms, and security appliance architectures. Source code review, claim chart preparation, and expert reports for district court and PTAB proceedings.

Data Breach and Incident Response Disputes Analysis of breach causation, attack vectors, incident response adequacy, security control effectiveness, and remediation efforts for negligence, regulatory enforcement, and class action matters.

Cybersecurity Trade Secrets Evaluation of proprietary security tools, threat intelligence platforms, detection algorithms, and security architectures to assess misappropriation or independent development.

Digital Forensics and Evidence Integrity Technical analysis of forensic collection methods, chain of custody, data recovery processes, and evidence preservation for civil and criminal proceedings involving electronic evidence.

Representative Engagements

  • Intrusion Detection System Patent Infringement Evaluated accused products against patent claims covering network traffic analysis and anomaly detection methods in a multi-party district court proceeding.
  • Security Software Trade Secret Misappropriation Analyzed source code repositories, development timelines, and architectural similarities between a former employer’s threat detection platform and a competing product developed by departed employees.
  • Healthcare Data Breach, Regulatory Enforcement Retained to analyze network security controls and incident response procedures following a large-scale breach of protected health information, assessing compliance with HIPAA security requirements.

Our Experts

Cybersecurity Expert Witness

Background

This expert holds a doctorate and a master’s degree in computer science, specializing in information technology. They founded and lead a cybersecurity consulting firm serving Fortune 500 and Fortune 50 companies, financial institutions, and government entities, providing solutions in network security and incident response. They have held senior leadership roles at technology and security firms, driving innovation, managing large-scale projects, and building intellectual property portfolios. They also served in high-level positions at a major aerospace and defense corporation, focusing on research in secure systems. With over 30 years of hands-on experience, they have extensive expert witness experience including declarations, expert reports, rebuttal reports, depositions, and trial testimony in cases involving patent infringement, validity, trade secrets, data breaches, and related disputes in federal and state courts, as well as arbitration and patent office proceedings.

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Expertise

  • Network security (firewalls, IDS/IPS, SIEM, VPN, NAC), secure network design, perimeter defense, DMZ architecture
  • Penetration testing, vulnerability discovery (CVE, CVSS), red teaming, threat modeling (STRIDE, MITRE ATT&CK)
  • Incident response (NIST SP 800-61, SANS IR), malware analysis, APT detection, insider threat mitigation
  • Encryption (AES, RSA, TLS/SSL, PKI, X.509)
  • Operating systems security (Windows, Linux, Unix), e-commerce security, web application security (OWASP)

Computer Security Expert Witness

Background

This expert holds a Ph.D. in Electrical and Computer Engineering. They have served as assistant professor and associate professor in electrical engineering, computer science, and computing departments, where they focused on research, teaching, and securing designations for academic excellence in cyber defense education. Their research program addresses security challenges across multiple domains, with funded projects and peer-reviewed publications in adversarial machine learning, IoT security for manufacturing environments, cloud computing security, and critical infrastructure protection. They have developed novel detection methods for phishing campaigns and malicious network traffic, and have contributed to defensive techniques against adversarial attacks on deep learning systems. Their work on cascading failure attacks in power systems and secure protocols for near field communication reflects a focus on security problems with real-world infrastructure impact.

Discuss your case

Expertise

  • Cloud computing security (AWS, Azure, GCP)
  • Edge computing (AWS Greengrass, Azure IoT Edge)
  • Critical infrastructure protection (SCADA, Modbus, DNP3, IEC 61850), cascading failure analysis
  • Power grid security (NERC CIP)
  • SpamAssassin, DMARC, SPF, DKIM, SMTP header analysis
  • IoT security (MQTT, CoAP, Zigbee, Z-Wave), defect injection attack detection, manufacturing system integrity (OPC UA)
  • NFC security protocols (ISO 14443, ISO 18092)

Cybersecurity and Digital Forensics Expert Witness

Background

This expert holds an advanced degree with a specialization in Cybersecurity and Data Privacy. With over 20 years in the cybersecurity field, they have served as a digital forensics and incident response consultant at a private cybersecurity firm, conducting forensic examinations of compromised systems, analyzing malware artifacts, and leading breach investigations. They previously worked as an incident response forensic engineer at an IT services company, handling network intrusion cases and data recovery operations. They have served as an adjunct professor teaching cybersecurity coursework and held software development and systems integration roles for government agencies and military support operations, building secure applications and integrating classified and unclassified systems. They have provided depositions and testimonies in civil cases involving intellectual property disputes and criminal cases related to forensic evidence.

Discuss your case

Expertise

  • Digital forensics (EnCase, FTK, Autopsy, X-Ways), disk imaging (dd, FTK Imager, E01/AFF formats), memory forensics (Volatility, Rekall)
  • Malware analysis (IDA Pro, Ghidra, OllyDbg, Cuckoo Sandbox, YARA rules)
  • Incident response (NIST SP 800-61, SANS IR methodology), network intrusion analysis (Wireshark, tcpdump, Zeek/Bro, Snort)
  • Network security (Nmap, Netflow, pcap analysis), server forensics (Windows Event Logs, syslog, journald), digital media examination (write blockers, hash verification, MD5/SHA-256), chain of custody procedures

Software Security Expert Witness

Background

This expert holds a PhD in computer science and an MS in computer engineering. They serve as a professor in computer science and engineering at a major public research university, where they direct research centers focused on security. Their research spans cyber-physical systems security, software security, multimedia security, and privacy engineering, with funded projects addressing threats to automotive systems, smart vehicles, and IoT environments. They have held roles as a visiting scientist at a U.S. government defense research laboratory, contributing to secure systems research for national defense applications. Their work includes co-founding conferences on data intelligence and security and delivering keynotes on security and privacy in cyber-physical systems. They have published extensively on digital watermarking, high-performance computing security, and biologically inspired approaches to security problems.

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Expertise

  • Software security analysis (SAST, DAST, fuzzing, AFL, LLVM), secure SDLC (OWASP SAMM, Microsoft SDL, BSIMM), code review (Coverity, Fortify, SonarQube)
  • Cluster computing (MPI, OpenMP, CUDA), heterogeneous computing (FPGA, GPU acceleration, OpenCL), HPC security (Slurm, PBS, job scheduler hardening)
  • DRM, HDCP, Widevine, digital watermarking, spread spectrum, DCT-domain, LSB embedding
  • Edge computing security (AWS Greengrass, Azure IoT Edge, OpenFog), sensor network security (6LoWPAN, RPL, IEEE 802.15.4)

Security and Forensics Expert Witness

Background

This expert holds a Ph.D. in Computer Science with a concentration in Digital Forensics from a respected university, along with a Cyber-Security Certificate. They serve in a leadership position at a digital forensics firm specializing in cybersecurity incidents, breaches, employee misconduct, and digital evidence analysis, where they oversee forensic examinations and deliver findings to legal teams and corporate clients. They are also an associate professor at a top university, teaching courses in web application security, network forensics, and mobile device security. Their research focuses on practical forensic methodologies, including operating system artifact analysis and evidence preservation techniques for emerging platforms. They have been involved in many cybersecurity and digital forensics cases, and their ability to explain complex technical details to non-technical audiences positions them well for expert witness roles in computer security litigation.

Discuss your case

Expertise

  • Web application security (OWASP Top 10, XSS, CSRF, SQL injection, CSP, CORS)
  • Network security (Wireshark, tcpdump, Snort, Suricata, IDS/IPS, firewall ACLs)
  • Digital forensics (EnCase, FTK, Autopsy, X-Ways, Cellebrite)
  • Disk forensics (E01, raw/dd imaging), network forensics (pcap, Netflow)
  • Mobile forensics (iOS, Android, JTAG, chip-off)
  • C/C++, C#, Java, Python, SQL, JavaScript, HTML
  • Operating systems forensics (iOS filesystem artifacts, Linux/Unix log analysis, Windows Registry/Event Logs, Android SQLite databases)

Identity and Internet Security Expert Witness

Background

This expert holds a PhD in Computer Science from a top university. They have served as a lecturer and teaching fellow instructing in security and sensitive information management, with coursework spanning authentication systems, cryptographic protocols, and privacy engineering. They co-founded a consulting firm specializing in internet technologies, founded an internet infrastructure service and a technology consulting and software development firm, and held director and general manager roles at technology companies. Their entrepreneurial work has involved building and securing large-scale web platforms, identity management systems, and content monitoring infrastructure. They hold patents in user authentication systems and automated online content retrieval, monitoring, and storage, and have authored academic papers on digital identity and privacy-preserving data sharing. They have substantial expert witness experience with trial testimony across state courts, federal district courts, and arbitrations.

Discuss your case

Expertise

  • Digital identity (SAML, OAuth 2.0, OpenID Connect, SCIM), federated identity management (SSO, IdP/SP, LDAP, Active Directory, Kerberos)
  • Authentication systems (MFA, FIDO2, WebAuthn, TOTP, HOTP, biometrics, PKI, X.509, certificate pinning)
  • Web security (TLS 1.2/1.3, WAF, CSP, HSTS, CORS, XSS, CSRF, SQL injection, OWASP Top 10), website security platforms
  • Internet infrastructure (DNS, DNSSEC, BGP, TCP/IP, HTTP/2, HTTP/3, QUIC, CDNs, AWS, Azure, GCP)

Speak with an Expert about Your Case

Discuss your Case

Lead Expert

Dr. Istvan Jonyer is a computer scientist with a PhD in artificial intelligence. He is a former Google executive who launched Google TV globally, built 3G wireless systems at Nortel Networks. He is a former associate professor of computer science and an experienced expert witness.

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"You were the right guy for the job! The deposition was fantastic." Attorney at Alston & Bird

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