When a cyber incident affects your business, you need to decide which systems can keep running and what is safe to restore. You also need to understand whether sensitive information has been exposed and whether the attacker still has access. Those decisions depend on a reliable picture of what happened.<\/p>\n
Digital forensics and incident response (DFIR) provides the expertise to establish those facts and act on them.<\/strong>Experienced investigators and responders help contain the incident, guide recovery and address the weaknesses that allowed the attack. For your organization, this can mean less disruption, better-informed decisions and less pressure on internal teams.<\/p>\n Endpoint detection and response (EDR) provides visibility into device activity and tools to investigate and contain threats. Managed detection and response (MDR) adds experts who monitor, investigate and respond within an agreed scope.<\/p>\n These capabilities are valuable during an incident. A dedicated DFIR team builds on that work when the situation requires deeper forensic investigation, coordination across a wider environment or additional recovery support. Investigators bring together evidence from endpoints, identities, cloud services and other systems to establish the extent of the compromise and guide the next decisions.<\/p>\n The following illustrative scenarios show why that wider investigation matters.<\/p>\n The fraudulent invoice inside a trusted conversation:<\/strong>\u00a0A finance team receives new bank details within an existing supplier email conversation. The payment looks legitimate until the supplier calls to ask where it is. DFIR investigators uncover a compromised mailbox that the attacker used to monitor payment discussions. They identify affected conversations and hidden forwarding rules, helping the company secure its accounts, support bank enquiries and assess what information was exposed.<\/p>\n The ransomware incident that started days before the outage:<\/strong>\u00a0EDR detects ransomware and isolates the affected server. Investigation reveals earlier use of a compromised administrator account and additional access to a backup server. DFIR responders identify the remaining access routes, assess evidence of data theft and help determine which backups can be trusted. Recovery can then address the wider compromise, reducing the risk of reconnecting systems while the attacker retains access.<\/p>\n The quiet intrusion targeting valuable information:<\/strong>\u00a0Business continues normally while an intruder spends weeks accessing sensitive project files. An unusual sign-in prompts an investigation that connects activity across workstations and cloud services. DFIR specialists reconstruct the timeline, uncover mechanisms used to maintain access and assess evidence of data collection and transfer. The organization gains a clearer understanding of the exposure and a plan to remove the intruder.<\/p>\n Even after an attacker has caused damage, effective response can prevent further loss and protect unaffected operations. Experienced responders help prioritize actions according to business impact while preserving evidence needed for the investigation.<\/p>\n Clear reporting gives management a factual basis for decisions. It also supports\u00a0cyber insurance claims and regulatory reporting<\/strong>\u00a0through documented timelines, findings on affected systems and data, and records of response actions. Legal and compliance teams can use these findings to assess notification obligations and prepare reports under NIS2 and GDPR, where applicable. Reports distinguish confirmed findings from assessments and explain any remaining uncertainty.<\/p>\n At WithSecure,\u00a0our incident response team is completely technology agnostic<\/strong>. We work across vendors, platforms and environments, alongside your existing teams and providers. Our investigations cover business email compromise, ransomware, cyber espionage and insider threats. Or any other needs.<\/p>\n A WithSecure DFIR retainer provides\u00a024\/7, SLA-backed access to specialists<\/strong>, with services available on demand at pre-agreed rates and no requirement to pre-purchase investigation days. Your organization has an established contact and activation process, reducing the time spent arranging expert support during an incident. Internal teams gain additional capacity when demands on them are greatest.<\/p>\n We also help you prepare through\u00a0custom tabletop exercises, runbooks and plan reviews<\/strong>, covering incident response, crisis management and recovery. Each engagement reflects your environment, business priorities and team responsibilities. Your people can practise difficult decisions, test escalation routes and address gaps before a real incident puts those arrangements under pressure.<\/p>\n The result is an organization better prepared to understand an incident, make informed decisions and restore operations with confidence grounded in evidence.<\/p>\n Read more about our Incident response services from here: <\/p>\nBuilding on your existing security investment<\/h2>\n
What DFIR can uncover<\/h2>\n
Evidence for decisions, reporting and recovery<\/h2>\n
Expertise available when you need it<\/h2>\n