Emergency Response Security Group is a boutique cybersecurity consultancy headquartered in Oregon, providing strategic security consulting, incident response, digital forensics, and investigative services to organizations throughout the United States. Remote engagements are standard, with on-site consulting available when project requirements warrant travel. Founded by Rhiannon Williams-Hughes, Emergency Response Security Group brings more than 27 years of enterprise cybersecurity experience spanning telecommunications, government, defense, financial services, gaming, retail, and critical infrastructure. The firm specializes in helping organizations identify, investigate, and remediate complex security challenges through practical engineering, investigative rigor, and executive-level advisory services.

Rhiannon Williams brings more than 26 years of enterprise cybersecurity experience spanning advanced digital forensics, incident response, offensive security, security research, penetration testing, and complex investigations, including recognized cyber defense work with the Department of War. She focuses on work in corporate espionage, hacking and leak investigations, anti-forensics research, including security architecture, audits, threat modeling and attack simulation. Her career combines deep technical expertise with real-world security operations, complemented by victim-focused nonprofit cyber work, independent security research, and guest authorship on cyber warfare. Rhiannon is married (happily). Knows enough about opsec to understand the rules. She is no longer 20 nor anorexic, and was never very tell, but you're hiring her for her intellect.

Award-winning cybersecurity engineer with deep technical expertise in penetration testing, red team/blue team operations, and advanced threat simulation in complex, custom-built environments. Extensive experience in hands-on security research, advanced threat detection, and proactive defense strategies for safeguarding critical infrastructure and intellectual property. Skilled in malware reverse engineering, exploit development, and designing robust security architectures to mitigate corporate espionage risks.

Core capabilities include incident response, digital forensics, penetration testing, red team operations, email security, malware analysis, phishing investigations, identity and access governance, SIEM and EDR engineering, open-source intelligence (OSINT), threat hunting, corporate investigations, and security architecture. Every engagement is conducted with strict confidentiality, technical precision, and a focus on measurable business outcomes. Our consulting philosophy is rooted in clarity and execution. We work alongside executive leadership and technical teams to understand organizational risk, prioritize remediation efforts, and implement security strategies that strengthen resilience while supporting operational objectives. Whether responding to an active incident, conducting a comprehensive security assessment, or serving as a trusted strategic advisor, our objective is to deliver solutions that are both technically sound and operationally sustainable.

Emergency Response Security Group is a licensed and insured business in the State of Oregon. A Private Investigator license application is currently pending, expanding our ability to support corporate investigations, digital evidence collection, fraud investigations, and other matters requiring investigative expertise. Beyond our commercial consulting practice, we remain committed to cybersecurity education, public safety, and victim advocacy through our nonprofit initiatives. We welcome opportunities to support organizations requiring senior-level cybersecurity leadership through project engagements, retained advisory services, security assessments, incident response, and long-term consulting partnerships. Standard invoicing terms are Net 15 following the initial engagement.

Business partners and referrals are always welcome.

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Proud sponsor of the 2025 KofC Golf Tournament

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Under Construction

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