Westchester work frequently crosses a home office, corporate campus, mobile workforce, Manhattan headquarters, and one or more cloud providers. A single disputed event may leave records on an endpoint, an identity platform, a mailbox, a mobile device, a building system, and a vendor portal. GDF coordinates those sources under one technical scope and keeps the preservation history, exceptions, and reporting method consistent.
Connect the disputed event across endpoint, identity, and cloud records
A file timestamp, mailbox item, mobile message, or access log rarely tells the entire story by itself. GDF identifies the systems that recorded the event, the clocks and retention settings that affect interpretation, and the corroborating sources needed to test the account offered by each party.
Computer forensics may cover workstations, servers, virtual machines, and storage media. The wider examination can include mobile devices, email, cloud applications, databases, media, identity events, and administrative records. Workpapers document how each source was preserved, which methods were applied, which alternatives were tested, and where the record remains incomplete.
- Defensible chain of custody and source-specific acquisition records
- Timeline and correlation work across endpoint, identity, email, cloud, and mobile sources
- Clear separation of observation, inference, supplied information, and limitation
Prepare expert work for White Plains and beyond
Expert witness work may begin before collection, after another examiner has issued a report, or close to deposition or trial. GDF can help frame the technical question, identify the records capable of answering it, review the opposing method, conduct independent testing, and explain the result in language the finder of fact can follow.
Court-admissible digital forensics remains a legal determination, not a promise made by an examiner. The technical foundation includes documented custody, method selection, validation, repeatability, alternative explanations, and stated limits. Counsel determines the applicable evidentiary standard, disclosure obligations, and legal argument.
The Southern District of New York maintains a courthouse in White Plains, and the New York Commercial Division lists Westchester among its jurisdictions. Assignments may also involve New York City counsel, other state or federal forums, arbitration, insurance claims, or private disputes. The technical scope follows the evidence and deadline rather than assuming a procedure from the location.
Preserve collaboration data before normal activity changes it
Westchester organizations often rely on Microsoft 365, Google Workspace, cloud storage, messaging platforms, mobile devices, and specialized business applications while employees work across offices and homes. Retention, synchronization, licensing, administrative changes, and user activity can alter what remains available.
GDF develops an eDiscovery data preservation plan that identifies custodians, systems, time ranges, access, retention, and the fields required for later analysis. Collections can include email content, headers, audit records, file versions, sharing activity, mobile artifacts, and endpoint context where authorized and technically available. Counsel retains control of legal holds, privilege, responsiveness, and production.
Make cyber response accountable to business owners
For an active event, GDF can begin 24/7 response by telephone. The response plan identifies immediate harm, affected identities and systems, evidence likely to change, current business constraints, and the people authorized to contain or restore services. Findings develop into a chronology that states likely access, movement, affected assets, recovery actions, and evidence gaps.
Before an event, GDF can conduct human-led penetration testing, vulnerability assessment, application and source-code review, and incident readiness planning. Testing follows authorized adversarial attack paths and connects each demonstrated weakness to a business consequence. Vulnerability remediation guidance identifies an accountable owner and a method for validating the correction.
For organizations subject to NYDFS Part 500 or another program, GDF can develop technical evidence showing how a control was configured, operated, tested, and corrected. Management and counsel decide whether the evidence satisfies a legal or regulatory requirement.
Validate OT boundaries without treating production like office IT
Healthcare facilities, campuses, municipal operations, water systems, transportation support, manufacturing, and commercial buildings depend on connected controls with different uptime and safety requirements from ordinary IT. GDF begins with operators, engineers, diagrams, passive traffic, and existing asset records before proposing active validation.
The scope can cover passive-first asset discovery, ICS security architecture, network segmentation validation, vendor access, remote administration, controller and server dependencies, operational consequence ranking, backup readiness, and response exercises. Any active step requires operator approval, named targets, communications, stop conditions, and recovery support.
Coordinate county and city sources without breaking the record
GDF supports work across White Plains, Yonkers, New Rochelle, the Sound Shore, central Westchester, and northern Westchester. A source may also sit in New York City, New Jersey, Connecticut, or another region. One lead can coordinate location, custodian, status, transfer, exception, and reporting records across that footprint.
The first call should identify the general location, evidence or system type, deadline, current custodian, and any reason the source cannot be moved or interrupted. GDF then confirms current availability and whether remote, on-site, or laboratory work fits the source and operating conditions. Do not submit evidence through the public form.