Swift, Expert-Led Digital Forensics and Incident Response
Minimize impact, uncover evidence, and accelerate recovery with THEOS DFIR services.
Whether responding to an active breach or strengthening your defences with a proactive retainer, we help you stay ahead of cyber threats.
Digital Forensics and Incident Response Overview
Proactive & Rapid DFIR Solutions
Digital
Forensics
What is it about?
When a cyber incident strikes, it is critical to understand how it happened with speed and precision. Our digital forensics experts investigate security incidents, collect and analyze evidence, and provide actionable insights to help you recover and strengthen your defenses. We ensure all findings are handled with legal integrity for compliance and potential litigation.
Key Services:
- Data Collection and Preservation
- Forensic Analysis
- Cyber Crime Investigation
Incident
Response
What is it about?
A fast, effective response can distinguish between minor disruption and significant damage. Our incident response team quickly contains threats, investigates the root cause, and guides your organization through recovery, minimizing downtime and preventing future attacks.
Key Services:
- 24×7 Incident Response
- Post-Incident Analysis
- Business Email Compromise
Proactive
Measures
What is it about?
The best way to handle an attack is to be prepared before it happens. Our proactive readiness services help you build a strong defense, ensuring your team knows exactly what to do when a cyber incident occurs.
Key Services:
- Incident Response Documentation & Planning
- Flexible Retainers
- Tabletop Exercises & Simulations
When a cyber incident strikes, speed and precision are critical. THEOS’ Digital Forensics and Incident Response (DFIR) team delivers expert support to contain threats, investigate root causes, and recover with confidence.
Go beyond emergency response.
Our DFIR retainer services ensure you’re always prepared, giving you priority access to forensic experts, proactive threat intelligence, and customized response plans.
WHY CHOOSE THEOS
Why THEOS is Your Trusted DFIR Partner
THEOS offers expert-driven digital forensics and incident response with rapid deployment, advanced technology, and tailored strategies.
We prioritize your security and data privacy, ensuring swift resolution and compliance with industry standards. Choose us for reliable, customized solutions to protect your organization.
Immediate Response from Expert Teams
Our certified DFIR professionals are available 24/7, ready to quickly contain threats, investigate breaches, and restore operations.
Advanced Forensics & Intelligence-Led Insights
We leverage cutting-edge forensic technology and expert-led analysis to uncover attack methodologies and deliver actionable intelligence.
Comprehensive Cyber Retainer Services
Beyond DFIR, our retainer clients get priority response, proactive security strategies, and faster resolution across all cybersecurity services.
Trusted by Enterprises & Insurance Firms
We provide forensically sound investigations, compliance-ready reporting, and cyber claims support, ensuring seamless risk management and recovery.
RESOURCES
DFIR Resources at Your Fingertips
Content
Digital Forensics & Incident Response Services Brochure
An overview of our expert-led DFIR solutions to help you investigate, contain, and recover from cyber incidents.
Get Your THEOS DFIR Brochure
Download the THEOS Digital Forensics & Incident Response (DFIR) Brochure to see how our experts help you rapidly uncover threats, mitigate damage, and strengthen your cyber resilience. Enter your email to receive the brochure.
PODCAST
Jonathan Crompton: Crisis Leadership When Cyber Attack Strikes
What happens when a ransomware hits, and every decision counts?
PODCAST
Rory Young: What Every Business Needs to Know About Cyber Insurance
When a cyber incident occurs, can your cyber insurance policy come to the rescue?
Frequently Asked Questions
Get Answers to Common Questions About Our DFIR Services
What is Digital Forensics & Incident Response (DFIR)?
DFIR is a cybersecurity practice that investigates, responds to, and mitigates cyber incidents. Digital forensics involves analyzing digital evidence to understand how a breach occurred, while incident response focuses on containing threats, minimizing damage, and restoring operations.
How quickly can your Incident Response team be deployed?
THEOS provides immediate incident response, with our 24/7 on-call DFIR experts ready to act. Retainer clients receive priority response for even faster containment and mitigation.
What types of cyber incidents does DFIR handle?
DFIR covers a wide range of cyber threats, including:
- Ransomware attacks
- Data breaches & insider threats
- Advanced Persistent Threats (APTs)
- Malware infections & unauthorized access
- Business Email Compromise (BEC) & phishing attacks
What proactive measures do you offer to prevent incidents?
Prevention is key to cybersecurity. THEOS provides:
- Incident Response Playbooks: Custom workflows for fast, structured responses
- Threat Intelligence Integration: Early detection of emerging threats
- Tabletop Exercises & Attack Simulations: Preparing teams for real-world scenarios
- Continuous Monitoring & Threat Hunting: Detecting suspicious activity before an attack occurs
What are the typical steps involved in an Incident Response investigation?
An IR investigation follows a structured approach to identify, contain, and remediate a security incident:
- Detection & Identification – Recognizing suspicious activity and confirming a security incident
- Containment – Isolating the affected systems to prevent further damage
- Investigation & Analysis – Conducting forensic analysis to determine the scope, impact, and origin of the attack
- Eradication – Removing threats, malware, and vulnerabilities
- Recovery – Restoring affected systems and validating security fixes
- Post-Incident Review – Documenting findings, lessons learned, and strengthening defenses for future incidents
How does digital forensics help after a cyber attack?
Digital forensics provides critical insights into how, when, and where an attack occurred. Our forensic specialists:
- Trace the attack origin and map out adversary actions
- Recover and analyze compromised data
- Preserve evidence for legal or regulatory investigations
- Provide recommendations to prevent future incidents
How do firms measure the effectiveness of their DFIR services?
Organizations evaluate DFIR effectiveness based on the following:
- Response Time: How quickly the IR team identifies and contains threats
- Detection Rate: The ability to recognize and respond to incidents before significant damage occurs
- Recovery Time: How efficiently affected systems are restored
- Root Cause Analysis & Prevention: How well forensic investigations help prevent future incidents
- Compliance & Reporting: Meeting regulatory requirements and cyber insurance standards
Do you offer support for legal and regulatory compliance?
Yes. Our DFIR services help organizations meet compliance requirements for frameworks such as ISO 27001, NIST, GDPR, PCI DSS, and industry-specific regulations. We also provide detailed forensic reports to assist with cyber insurance claims and legal proceedings.
Why should organizations have a DFIR retainer?
A DFIR retainer ensures faster response, proactive security, and expert guidance before, during, and after a cyber incident. Retainer clients benefit from:
- Pre-established response plans
- Faster deployment of DFIR experts
- Priority support for critical incidents
- Ongoing risk assessment and security improvements
How does THEOS ensure confidentiality and data protection during investigations?
We adhere to strict data handling protocols and industry best practices, ensuring that all investigations are conducted with complete confidentiality, legal integrity, and compliance with privacy regulations.
Want to Learn More About THEOS DFIR Services?
Explore how our digital forensics and incident response solutions can strengthen your cybersecurity strategy.
