Ransomware & BEC Incident Response | Forensic Cyber Investigation

Rapid, Forensic-Grade Response to High-Stakes Incidents

Facing a ransomware attack or business email compromise?

Our ransomware incident response team delivers immediate ransomware forensic analysis and BEC incident response to contain threats, recover systems, and preserve evidence. When speed matters, we act decisively to protect your business and reputation.

A ransomware attack can bring business operations to a grinding halt by encrypting critical data and systems, followed by a demand for ransom in exchange for a decryption key. When ransomware or business email compromise (BEC) strikes, speed and precision are critical. NSI Global’s forensic response team specialises in identifying the full scope of compromise, tracing threat actor activity, and helping your organisation recover securely.

We don’t just analyse — we investigate, reconstruct, and guide your containment and remediation. Our deep forensic expertise sets us apart, ensuring all evidence is preserved, threats are identified, and lessons are translated into resilience.

Our analysts work closely with your legal, technical, and executive teams to deliver facts — not assumptions — during an incident.

Our Incident Response Capabilities

Ransomware Forensic Analysis

Identify the encryption method, initial infection vector, persistence mechanisms, and attacker movement across your network.

Business Email Compromise Response

Trace mailbox manipulation, forwarding rules, phishing paths, and user activity to reveal the full scope of the BEC incident.

Forensic Imaging & Log Analysis

Capture and analyse endpoint and network artefacts to reconstruct attacker behaviour and establish a clear timeline of events.

Attribution & Threat Actor Profiling

Determine if you were targeted by known ransomware gangs or APT groups by mapping tactics to frameworks like MITRE ATT&CK.

Why Our Approach is Different

We specialise in ransomware investigations, BEC, and complex DFIR – not generic incident response.
Chain of custody is maintained for lega, regulatory, and insurance claims.
Our forensic methodology follows intelligence-led models (MITRE, threat actor mappings).
Our reports are tailored for executives, boards, and legal proceedings – not just IT teams.

Prepare for the Next Attack

Recovery is only the first step. Strengthening your defences is critical.

Explore how our Adversary Emulation & Red Teaming and Cyber Posture Consulting services can help you avoid repeat compromise and build lasting cyber resilience.

Facing an Incident? Contact Our Response Team Now.

If you’re in the middle of an attack, or want to prepare for one, speak to our DFIR team today to arrange a confidential discussion at our radio-shielded, secure office in Sydney’s Olympic Park of via a secure WebEx conference call.

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Ransomware Incident Response & BEC Forensics