Digital Forensic Services Sydney, Mobile Phone Forensics Canberra, Melbourne

Digital Forensic Analysis & Incident Response

When your organisation is under attack or suspects internal sabotage, the speed and integrity of your response can determine the outcome of your legal, financial, and reputational standing.

At NSI Global, our Digital Forensic Incident Response (DFIR) service is designed for corporate, government, and legal clients who require immediate, forensically sound investigation and response to digital incidents.

Utilising equipment that is used by intelligence agencies, law enforcement and government bodies worldwide, our legally qualified examiners are able to recover data from mobile phones and other digital devices as part of our comprehensive mobile phone digital forensic services.

We don’t just contain the threat – we recover critical evidence, analyse intent, identify origin, and deliver expert reports for court back by expert witness testimony when needed.

The NSI Global Advantage

Our response methodology is built on decades of counterintelligence and forensic expertise and enhanced through a Nine-Stage Forensic Workflow. This proprietary model goes beyond typical four-stage IT workflows — ensuring every action taken is documented, legally defensible, and aligned with judicial expectations.

Why this matters
Many firms offer IT support or digital recovery services — but few operate with the legally certified expertise required to withstand cross-examination or court scrutiny. NSI Global does.

Digital Forensic Incident Response Services Include:

Triage and containment of active threats (on-site or remote)
Forensic imaging and data preservation under chain-of-custody
Artefact recovery from desktops, laptops, mobile devices, servers, cloud accounts
Spyware and malware analysis (including Pegasus-like tools)
Business Email Compromise and insider threat investigations
Full litigation support, including expert reports, affidavits, and expert witness preparation

To understand further why NSI Global should be your first choice for data recovery, read our:

Critical Information To Consider For Crucial Data

When You Need DFIR Services

Data breaches and cyber attacks

Employee misconduct investigations

Intellectual property theft

Regulatory compliance incidents

Litigation support and e-discovery

Trusted With Complex Digital Forensic Investigations for Over Two Decades

When a digital incident occurs—whether it’s a cyber breach, insider threat, or intellectual property theft—time, precision, and legal admissibility are critical.

While internal IT teams may attempt initial containment, they typically lack the specialist tools, legal training, and forensic procedures required to preserve deleted data without compromise. Most commercial recovery software poses a serious risk of overwriting deleted artefacts, permanently destroying potential evidence.

At NSI Global, our Digital Forensic Unit holds government security clearances from Baseline to Negative Vetting Level 1 (NV1), granting us access to the same restricted forensic equipment used by law enforcement, military, and intelligence agencies worldwide.

We deploy our proprietary 9-Step Digital Forensic Incident Response & Electronic Discovery Model (DFIR-EDM), developed specifically for high-stakes legal and corporate investigations. This model ensures:

Adherence to evidentiary standards under the laws of evidence
Full chain-of-custody from initial collection to courtroom
Integration with legal teams for litigation support
Cryptographically hashed forensic reports
Expert witness affidavits, if required

We work closely with your solicitors and barristers, ensuring seamless integration with ongoing legal proceedings. Whether the matter is internal, regulatory, or judicial, NSI Global delivers reliable, legally sound, and defensible digital evidence.

To learn more about how we support litigation and legal cases, visit:

Frequently Asked Questions

What is Digital Forensic Incident Response used for?

DFIR is a structured investigative process used to identify the origin, scope, and impact of a digital security event. It enables the preservation of volatile and non-volatile data, reconstruction of timelines, attribution of threat actors or insider activity, and the production of legally admissible evidence.

What makes your forensic reports admissible in court?

Our digital forensic reports are prepared by legally trained specialists, cryptographically hashed, and documented with a full chain-of-custody. We provide affidavits and can testify in court as expert witnesses in line with civil, family, or criminal procedure.

Can I use data recovery software?

We don’t recommend it. Commercial recovery tools often overwrite deleted data, making it unrecoverable or inadmissible in court. NSI Global uses specialised forensic hardware to safely extract and preserve data without compromising its integrity. When the evidence matters, trust the experts.

What threats do you investigate?

Our DFIR investigations can be conducted for Ransomware and Business Email Compromise, insider sabotage or unauthorised access, IP threft and corporate espionage, AVO issues, and more.

Can overwritten data from consumer tools still be recovered?

In most cases, no. Using standard software on an affected device can irreversibly overwrite deleted files. That’s why forensic-grade hardware and air-gapped extraction methods are essential for admissible recovery.

Can deleted data or spyware/malware traces still be recovered?

In most cases, yes. Using specialist tolls not available to general IT providers, NSI global can extract hidden or deleted artefacts from many types of digital devices.

Will NSI Global's findings be admissible in court?

All of our digital forensic investigations meet evidentiary standards and include hashing, chain-of-custody documentation, drafting of affidavit's and expert reports, and expert witness testimony.

Request a Digital Forensic Incident Response Now

Our DFIR team is ready to respond. You can reach us for a confidential, expert-led digital forensic consultation.

Please note, we adhere to the Privacy Act, Surveillance Devices Act and relevant statutes in relation to the access of a device and cloud-based data. We will require the permission of the user/owner of the account to be able to access said data

NSI Global will not interfere nor accept any job or assignment for a client that is the subject of any law enforcement investigation.

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