Evidence-Based Security Investigation
After a security incident, understanding exactly what happened is not optional — it is essential. Without rigorous forensic investigation, organisations cannot determine the scope of a breach, identify compromised data, satisfy regulatory notification requirements, or prevent recurrence.
Daniel Ossio conducts methodical, legally defensible forensic investigations that combine deep technical analysis with clear communication. Every investigation follows chain-of-custody best practices, ensuring findings are admissible and actionable — whether the audience is a technical team, executive board, or regulatory authority.
Forensics & Analysis Services
Log File Analysis
Deep analysis of system, application, and security logs. Reconstructing attack timelines, identifying indicators of compromise, and correlating events across disparate log sources.
Traffic Analysis
Network traffic capture and analysis: identifying C2 channels, data exfiltration, lateral movement patterns, and anomalous communications through packet-level inspection.
Behavioural Analysis
User and entity behaviour investigation: detecting insider threats, credential abuse, privilege escalation, and anomalous access patterns through statistical and temporal analysis.
Malware Analysis
Static and dynamic malware analysis: understanding capabilities, persistence mechanisms, C2 infrastructure, and developing indicators for detection and eradication.
Investigation Methodology
Every forensic engagement follows a structured methodology that ensures completeness, accuracy, and legal defensibility:
- Evidence Collection: Forensic imaging of affected systems with cryptographic hash verification and chain-of-custody documentation
- Timeline Reconstruction: Building comprehensive attack timelines from multiple evidence sources — logs, artefacts, memory, and network captures
- Root Cause Determination: Identifying the initial access vector, exploitation techniques, and adversary objectives
- Scope Assessment: Determining the full extent of compromise — affected systems, accessed data, and potential data exfiltration
- Reporting: Clear, structured reports suitable for technical teams, executive leadership, and regulatory authorities
Proactive Analysis
Forensics is not only reactive. Daniel also provides proactive security analysis services: compromise assessments that look for evidence of undetected breaches, security posture evaluations through log analysis, and threat-informed penetration testing that validates detection capabilities.