Breach Response Firms
Data breach? Get expert incident response help within 24 hours. Compare vetted IR specialists by response time, industry, and expertise.
Featuring Top Incident Response Firms
Every Hour Costs Money
The first 72 hours determine your breach outcome. Companies with incident response teams and tested plans save $2.66 million on average compared to those without. Fast containment reduces total costs by 54%.
Contain
Isolate affected systems. Preserve evidence. Activate response team. Do not delete anything.
Investigate
Engage forensic experts. Assess scope and data types. Determine notification obligations.
Notify
File regulatory notifications. Prepare communications. GDPR requires 72-hour notification.
Featured Incident Response Firms
Industry-leading IR specialists with proven track records. All firms offer 24-hour emergency response and global coverage.
Mandiant (Google Cloud)
24hrAlexandria, Virginia
Industry pioneer in incident response with expertise dating back to 2004. Known for investigating high-profile nation-state attacks and advanced persistent threats. Part of Google Cloud since 2022, operating in over 30 countries with frontline threat intelligence.
Specialties
Certifications
CrowdStrike Services
24hrAustin, Texas
Global cybersecurity leader providing cloud-native endpoint protection and incident response services. Investigated major breaches including Sony Pictures and DNC incidents. Combines threat intelligence with rapid response capabilities.
Specialties
Certifications
Microsoft Incident Response
24hrRedmond, Washington
Formerly Microsoft DART, this team provides proactive and reactive incident response services. Leverages unparalleled visibility into the global threat landscape through Microsoft's vast telemetry. Specializes in complex, nation-state, and cloud-based attacks.
Specialties
Certifications
AWS Customer Incident Response
24hrSeattle, Washington
Specialized team dedicated to supporting AWS customers during active security events. Provides deep expertise in AWS infrastructure, logging, and security services to help customers analyze, contain, and recover from cloud-based incidents.
Specialties
Certifications
Find the Right Resource for Your Situation
Whether you're facing an active breach, researching compliance requirements, or building response capabilities—we have the resources you need.
Emergency Response
Active breach? Get immediate help and guidance.
72-Hour Emergency Guide
Critical actions for the first 72 hours after discovering a breach.
Read Guide →Response Checklist
Step-by-step checklist to ensure nothing is missed during response.
Get Checklist →Find IR Specialists
Connect with vetted incident response firms within 24 hours.
Browse Directory →Compliance Requirements
Navigate regulatory obligations and notification deadlines.
Healthcare/HIPAA Breaches
HIPAA notification requirements, OCR reporting, and healthcare-specific response.
Read Guide →Breach Cost Analysis
Industry breach costs, penalty ranges, and financial impact analysis.
View Analysis →Breach Database 2024-2025
50+ recent breaches tracked with attack vectors and outcomes.
Explore Data →Planning & Preparation
Build capabilities before you need them.
Response Plan Template
Complete IR plan template. Customize for your organization in 2 hours.
Download Free →Response Team Structure
Build an effective breach response team with clear roles and responsibilities.
Read Guide →IR Retainer Programs
Establish retainer relationships with IR firms for priority response.
Find Firms →Why Use This Directory?
Only established firms with proven IR expertise and certifications
All listed firms offer 24-hour emergency response capability
Coverage across US, UK, Europe, and worldwide operations
Filter by industry: Healthcare, Financial, SaaS, Government, Retail
Frequently Asked Questions
What is a breach response firm?
A breach response firm (also called incident response firm or IR firm) is a cybersecurity company that specializes in helping organizations respond to and recover from data breaches. Services typically include digital forensics, malware analysis, threat containment, regulatory notification support, and recovery assistance.
How much does incident response cost?
Incident response costs vary based on breach severity and scope. Per-incident engagements typically range from $50,000 to $300,000. Retainer agreements cost $50,000 to $200,000 annually. The average total breach cost is $4.45 million globally and $9.36 million in the United States (IBM 2024).
How quickly can IR firms respond?
Most established IR firms offer 24-hour emergency response. Many can begin remote investigation within 2-4 hours of engagement. On-site response typically occurs within 24-48 hours depending on location. Retainer clients often receive guaranteed faster response times.
What should I do first during a breach?
In the first 4 hours: 1) Isolate affected systems from the network (do not turn off or delete), 2) Preserve all logs and evidence, 3) Activate your incident response team, 4) Contact legal counsel, 5) Engage an external IR firm if you lack internal expertise. Do not attempt to clean or remediate systems before forensic analysis.
When am I legally required to report a breach?
Notification timelines vary by regulation: GDPR requires notification within 72 hours, HIPAA within 60 days (or immediately if 500+ affected), CCPA "without unreasonable delay," and various state laws have specific requirements. Consult legal counsel immediately to determine your specific obligations based on data types and jurisdictions.
Don't Wait Until It's Too Late
Every minute matters during a breach. Connect with incident response specialists now— whether you're facing an active breach or building your response plan.