Modern Digital Forensics and Incident Response Led by a Team That Helped Define It

Defensible’s DFIR practice is built on Stroz Friedberg lineage and decades of field-tested experience. Our seasoned CISOs and forensic investigators deliver rapid containment, clear answers, and lasting resilience.

Need Help Now?

If you’re experiencing an active incident, call (646) 349-4252 or complete the form below for immediate assistance.

Available 24/7. Average initial response time under 15 minutes.

What Incident Response Looks Like with Defensible

Defensible’s DFIR team follows a proven methodology to contain threats, stabilize operations, and protect your organization’s reputation.

 

DEFS_ProcessOverview

 

Ransomware Investigations

Identify how the ransomware entered, what was encrypted, and guide recovery

Web Application Compromises

Analyze exploits, injection points, and malicious payloads

Malware Analysis

Reverse-engineer malware to understand behavior and remove infection

Cloud Breach Responses

Investigate unauthorized access in Microsoft 365, Google Workspace, AWS, and more

Business Email Compromises (BEC)

Trace unauthorized email access, wire fraud attempts, and credential misuse

Court-Admissible Evidence Collection

Forensically sound data capture to support legal, compliance, or insurance proceedings

What Digital Forensics Looks Like with Defensible

After an incident, Defensible’s forensic team gets to the root cause. We uncover how the attack happened, measure its full impact, and guide remediation to ensure it doesn’t happen again.

Digital Forensics Investigations

Collect, analyze, and interpret digital evidence across devices and platforms

Memory Forensics

Recover volatile data to reveal in-memory malware or attacker activity

Insider Threat & IP Theft

Identify policy violations, sabotage, or unauthorized data transfers

Expert Witness & Litigation Support

Support legal teams with expert analysis and testimony

Network Forensics

Reconstruct attack paths and exfiltration via packet captures and log analysis

Mobile Forensics

Extract and analyze data from iOS and Android devices

Structured Data Investigations

Review logs, databases, and system records for audit trails or fraud

eDiscovery

Manage electronically stored information (ESI) for legal review, regulatory inquiry, or dispute resolution

FEATURED CUSTOMER STORY

Containing a Server Breach for a vCISO Client

  • Customer: Long-term vCISO client in the nonprofit sector
  • Challenge: After migrating to Microsoft Azure, the client detected suspicious activity on an internet-facing Confluence server, raising concerns of possible lateral movement and exposure.
  • Solution: Defensible immediately launched a targeted forensic investigation—analyzing firewall ACLs, DNS records, and SentinelOne telemetry to verify scope, confirm containment, and eliminate the threat.
  • Result: The breach was contained quickly with no persistence or spread. Azure configurations and firewall rules were reinforced, strengthening the client’s cloud security posture.
Containing a Server Breach for a vCISO Client
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We help you stay ready and prevent incidents before they happen.