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Stealth Layer Security

Service

Digital Forensics & Incident Response

Calm, structured digital forensics and incident response support during active or suspected security incidents — containment, evidence preservation, root-cause analysis, and clear communication with your stakeholders.

When to Contact Us

Coverage areas applied through manual validation and tool-assisted analysis.

  • Suspected unauthorized access to systems or accounts
  • Confirmed data exposure or exfiltration
  • Ransomware activity or destructive malware
  • Compromised cloud or SaaS administrator accounts
  • Suspicious activity in logs you cannot explain
  • Insider threat investigations
  • Business email compromise (BEC)
  • Post-incident review of a contained event

Deliverables

What you receive at the close of the engagement.

  • Incident triage and severity confirmation
  • Containment guidance and execution support
  • Evidence preservation and chain-of-custody handling
  • Forensic timeline of attacker activity
  • Root cause analysis and impacted asset list
  • Stakeholder-ready written summary
  • Hardening and remediation roadmap

Who This Service Is For

Teams facing active or suspected incidents that need structured investigation and clear reporting.

  • Active security incidents
  • Ransomware events
  • Data breaches
  • Malware outbreaks
  • Insider threat investigations
  • Business email compromise (BEC)
  • Compromised SaaS or cloud admin accounts
  • Post-incident reviews

When Organizations Typically Engage Us

Common moments in a product or compliance lifecycle where this assessment adds the most value.

  • Confirmed or suspected unauthorized access
  • Ransomware activity or destructive malware
  • Sensitive data exfiltration or exposure
  • Compromised administrator or root credentials
  • Regulatory or contractual breach notification requirements
  • Insider threat concerns
  • Unexplained anomalies detected in logs or monitoring
  • After containment, to establish root cause and next steps

Response Phases

A typical engagement moves through the following phases. Exact durations vary with scope and complexity.

  1. Initial Triage

    Rapid scoping of the incident, severity assessment, and immediate protective guidance.

  2. Authorization & Engagement

    Written authorization, Rules of Engagement, and data handling terms are agreed.

  3. Containment

    Coordinated containment guidance and execution support to limit ongoing damage.

  4. Evidence Preservation

    Forensic acquisition of relevant logs, disk, memory, and cloud artifacts with chain-of-custody.

  5. Investigation

    Timeline reconstruction, attacker activity mapping, and impacted asset identification.

  6. Root Cause Analysis

    Determination of initial access, dwell time, techniques used, and control failures.

  7. Reporting

    Stakeholder-ready written summary and technical report with timeline and IoCs.

  8. Hardening Roadmap

    Prioritized recommendations to prevent recurrence and improve detection.

Example Finding

Illustrative only. Not a real client engagement. Provided to convey the level of detail included in reports.

CRITICALIllustrative example

Business Email Compromise with Forwarding Rule and OAuth Abuse

Business Impact
An attacker gained access to a finance user's mailbox via a phishing-derived OAuth grant, created a hidden forwarding rule, and used the mailbox to intercept invoice communications and attempt fraudulent wire redirection.
Recommendation
Revoke the malicious OAuth grant, remove forwarding rules, reset credentials and sessions, harden conditional access, enforce phishing-resistant MFA, and add detections for suspicious OAuth grants and mailbox rule changes.

Frequently Asked Questions

Answers to the questions clients most often ask before engaging us for this assessment.

What counts as a security incident?

Any confirmed or suspected unauthorized access, data exposure, ransomware activity, destructive malware, compromised administrative account, or unexplained suspicious activity in logs.

How fast can you respond?

We prioritize triage of active incidents. Once contacted, we begin scoping and initial guidance immediately and coordinate a formal engagement start as quickly as your organization can authorize it.

Do we need to power off affected systems?

Not by default. Powering off systems can destroy volatile evidence. Preserve logs and system state, avoid destructive actions where possible, and coordinate containment with us.

Do you preserve evidence for legal or regulatory needs?

Yes. We follow chain-of-custody practices during evidence acquisition so that findings can support internal, legal, or regulatory processes.

Do you support cloud and SaaS incidents?

Yes. We handle incidents across cloud accounts, SaaS platforms, endpoints, and on-premises systems.

Do you provide a written incident report?

Yes. Every engagement concludes with a stakeholder-ready written summary, a forensic timeline, an impacted asset list, root cause analysis, and a hardening roadmap.

Do you sign NDAs before receiving sensitive information?

Yes. Mutual NDAs are signed before any sensitive information is exchanged.

Can you help us communicate with stakeholders?

Yes. We provide clear written summaries and can support communication with leadership, customers, insurers, and regulators as required.

Related Resources

Additional context on how we work, what we deliver, and how we protect client data.

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