01 / DFIR

Digital Forensics & Incident Response

Containment within hours. Eviction within days. Forensic reconstruction admissible in any jurisdiction.

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Overview

When the breach is live, every minute is a decision.

Versus DFIR is the team you call in when an active incident has crossed the threshold from "alert" to "crisis." We triage intake email within the hour, deploy under signed engagement letter and outside counsel privilege, and have operators and forensic infrastructure on the wire the same day.

Our methodology blends technical containment with operational discipline: we coordinate with your legal counsel, breach coach, cyber insurer, and regulators in parallel — producing the artifacts each stakeholder needs without your team duplicating work in the worst possible week.

Every action is documented under chain-of-custody from minute one. Every artifact is admissible. Every decision is defensible. That is the bar.

Fig. 01 · DFIR workflow T+0T+15mT+1hT+24hT+72h IntakeTriage starts ActivateEngagement letter StabilizeContainment live EradicateThreat evicted ReportPrivileged record FORENSIC ACQUISITION ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ CONTAINMENT ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ PRIVILEGED COUNSEL ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Capabilities

What we deliver in the first 72 hours

Each engagement is led by senior operators. Scope is shaped to your environment, not pulled from a template.

01

Live containment

Active threat eviction across endpoint, identity, cloud, and network. Pre-authorized response so we act, not wait.

02

Forensic acquisition

Memory, disk, cloud-native, and SaaS-native acquisition with verifiable chain of custody.

03

Malware reverse engineering

Static and dynamic analysis of implants, droppers, and tooling — with IOCs and YARA delivered same-day.

04

Root-cause analysis

Initial-access vector, lateral movement, persistence, and exfiltration timeline reconstructed and documented.

05

Notification readiness

Forensic findings packaged for regulators, customers, and legal — under attorney-client privilege.

06

Litigation support

Expert reports, depositions, and courtroom testimony if your incident moves to litigation.

Engagement flow

How we run it.

A consistent rhythm whether the engagement is a single audit or a multi-quarter program.

PHASE 01

Activate

Intake triage within the hour. Engagement letter, scope, and operators stood up the same day.

PHASE 02

Contain

Active threat eviction, identity reset, network segmentation. Stop the bleeding before forensics begins.

PHASE 03

Investigate

Telemetry collection, malware analysis, timeline reconstruction. Privileged forensic record built in parallel.

PHASE 04

Recover

Rebuild authority, validate eradication, deliver post-incident report and detection content for your team.

FAQ

Common questions.

If yours isn’t here, ir@versus-sec.com and the engagement intake both reach a senior partner.

How fast can you actually be on the wire?

For retainer clients, within the hour to triage and same day to engagement letter. For first-time clients, the same — assuming counsel is available to sign. We have legal templates ready and operators on rotation continuously.

Do you work under attorney-client privilege?

Yes — by default. We engage through your outside counsel so investigation findings are protected work product. If you do not have breach counsel, we can introduce you to firms we work with regularly.

What if we already have an incident response retainer with someone else?

We frequently work alongside other DFIR firms as the deeper-bench second responder, the malware reverse-engineering specialist, or the cross-border arm of an investigation. We also stand alone.

Will you talk to our cyber insurer?

Yes. We are on most major cyber-insurance panels and we know the carrier playbooks. We coordinate notification, scope approval, and final reporting directly with the carrier and breach coach.

What artifacts do we get at the end?

A privileged forensic investigation report, root-cause analysis, IOC and YARA package, detection content for your SIEM/EDR, and a hardening roadmap. If litigation follows, we deliver an expert report and stand behind it.

Related capabilities

Often paired with.

DFIR engagements frequently sit alongside these capabilities. The same operating doctrine, the same partners.

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Ready to scope a dfir engagement?

Most engagements begin with a 30-minute scoping call. We’ll tell you within that call whether we’re the right fit.

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