NIKSUN's network forensics solutions reconstruct any incident from full-packet evidence — back-in-time investigation, root-cause analysis, and a defensible record of exactly what happened.
Network forensics is the practice of capturing, recording, and analyzing network traffic to investigate security incidents, performance problems, and policy violations after they occur. Where most security tools tell you that something happened, network forensics tells you exactly what happened — the who, what, where, when, and how — by preserving the underlying packets as evidence. It is the difference between an alert and an answer.
Effective network forensics depends on a few core capabilities:
Security operations teams, incident responders, threat hunters, compliance officers, and law-enforcement and government agencies all rely on network forensics. Benefits include:
As attacks grew more sophisticated, organizations realized that real-time detection alone could never be enough — sophisticated adversaries are designed to evade it, and the most damaging breaches often go unnoticed for months. Network forensics emerged as the discipline of keeping the ground truth: a complete recording of the network so that, no matter what slipped past the alarms, investigators could always go back and reconstruct events. NIKSUN pioneered this category, building full-packet capture and "record everything" forensics into a single platform — and it remains the chosen provider of Full Packet Capture for the U.S. Department of Defense.
Doing network forensics well is hard, and most approaches fall short:
Let's look at how NIKSUN solves these challenges for network forensics.
Sampling and dropped packets destroy the evidence an investigation depends on.
Solution: NIKSUN's zero-loss capture records every packet at line rate — 100 Gbps on a single platform, clusterable to multi-Tbps — without dropping a single packet or other data type. This is the same technology trusted by the U.S. Department of Defense. Because nothing is missed, the forensic record is always complete and the answer is always there to be found.
Recording, indexing, and searching at extreme scale is beyond most tools.
Solution: The NIKSUN Knowledge Warehouse turns raw packets into rich, searchable metadata in real time and stores both at petabyte scale, with world-leading query response. Investigators can pivot from a high-level alarm to the exact packet in seconds, even across enormous datasets and long timeframes.
Short retention means the evidence is gone before you go looking for it.
Solution: NIKSUN lets you store hours, days, weeks, months, or years of raw data and metadata, so you can rewind to any moment and reconstruct exactly what happened — even for a breach that began long before it was detected.
Forensics is slow when packets, logs, and flows live in separate tools.
Solution: NIKSUN cross-correlates packets, flows, logs, events, and device metrics in one unified data lake. An investigator sees the full context of any incident — the session, the files, the endpoints, the alarms — from a single pane of glass, dramatically reducing Mean Time to Resolution.
As far back as your retention allows. NIKSUN stores raw packets and metadata for as long as you need — hours, days, months, or years — so you can rewind to any moment and reconstruct exactly what happened, even for breaches that began long before detection.
Everything. NIKSUN performs lossless full packet capture at line rate, so the complete record is always preserved. Sampling-based tools inevitably miss the one packet that explains the incident — NIKSUN does not.
Yes. NIKSUN preserves accurately timestamped, tamper-evident records with full audit trails, suitable for internal investigations, regulatory audits, and legal proceedings.
In seconds. NIKSUN's real-time indexing and world-leading query response let investigators pivot from a high-level alarm to the exact packet across petabytes of data, then correlate it with logs, flows, and events in a single platform.
NIKSUN is the recognized world leader in empowering organizations to Know the Unknown. Since 1997, we have been committed to delivering the most innovative solutions for securing and optimizing the networks of over a thousand customers, including Fortune 500 companies, government agencies, and service providers.
Our industry leading suite of scalable, forensics-based cyber security, and network performance monitoring products provide customers with in-depth and actionable insight into security threats, performance issues, and compliance risks. NIKSUN's patented real-time analysis and recording technology is the industry's most comprehensive solution for securing and maintaining dynamic network infrastructure.
See how NIKSUN reconstructs any incident from complete, lossless packet evidence.