Digital Forensics may be required whenever an organisation needs to establish what happened within its technology environment. Common scenarios include ransomware, data breaches, Business Email Compromise, malware infections, compromised accounts, insider threats, cloud compromise and suspected unauthorised access. 

 A Digital Forensics investigation typically begins by identifying and preserving relevant evidence. Specialists then analyse systems, logs, accounts and other digital artefacts to reconstruct events, determine the scope of the incident and establish what activity occurred. The findings can then support Incident Response, remediation and wider internal, legal or regulatory investigations. 

 Depending on the investigation, evidence may include endpoints, servers, security logs, authentication records, email activity, cloud environments, network data, suspicious files and user activity. Investigators correlate evidence from relevant sources to build a clearer picture of what happened and when. 

 Digital Forensics can help determine how an attacker gained access, when the compromise began, which accounts and systems were affected, how the attacker moved through the environment and whether persistence mechanisms were established. It can also help assess whether sensitive information may have been accessed or stolen. 

 Digital Forensics focuses on collecting and analysing evidence to understand what happened during a cyber incident. Incident Response focuses on containing the threat, removing malicious access and supporting recovery. During a significant cyber attack, the two disciplines usually work together, with forensic findings informing containment and remediation decisions. 

 DFIR stands for Digital Forensics and Incident Response. It combines forensic investigation with the technical response required to contain, eradicate and recover from cyber attacks. DFIR teams help organisations both understand an incident and take the actions required to limit its impact. 

 The length of an investigation depends on the complexity and scope of the incident. A limited investigation involving a small number of systems may be completed relatively quickly, while incidents involving multiple systems, cloud environments, prolonged attacker activity or large volumes of evidence can take considerably longer. 

 Digital Forensics can identify evidence that information was accessed, copied, transferred or exfiltrated. However, it may not always be possible to prove conclusively whether every piece of data was taken. Investigators analyse available logs, system activity, network evidence and attacker behaviour to determine the likelihood and potential extent of data theft. 

 Yes. One of the main objectives of a cyber forensic investigation is to establish the initial access vector where sufficient evidence is available. This may involve compromised credentials, phishing, exploited vulnerabilities, malicious applications, remote access services or other attack techniques. 

 In some circumstances, Digital Forensics can identify or recover deleted data, depending on the device, storage technology, actions taken since deletion and whether the underlying information has been overwritten. Even when a complete file cannot be recovered, forensic artefacts may still provide evidence that it previously existed or was accessed. 

 Yes. Digital Forensics can support investigations into suspected malicious, unauthorised or inappropriate activity involving employees, contractors or other trusted users. Analysis may help establish which systems or information were accessed, what actions were taken and when the activity occurred. 

 Relevant evidence can include security and system logs, authentication records, suspicious files, emails, endpoint data, network activity and details of affected accounts. Organisations should avoid unnecessarily deleting files, clearing logs or making extensive changes to potentially compromised systems before forensic evidence has been preserved. 

 Not automatically. Shutting down a device can remove volatile information that may be valuable to investigators, although leaving a compromised system connected can also create additional risk. The appropriate action depends on the circumstances. Where possible, seek Incident Response or Digital Forensics guidance before taking unnecessary action. 

 Yes. Digital Forensics can help establish how unauthorised access occurred, which systems and identities were affected and what information may have been accessed or disclosed. These findings can help organisations understand the scope of a breach and support engagement with legal advisers, regulators and other relevant stakeholders. 

 Yes. Digital Forensics can help determine how ransomware attackers gained access, how long they were present, which credentials or systems were compromised and how they moved through the environment. It can also help establish whether data may have been exfiltrated before ransomware was deployed. 

 Chain of custody is the documented record of how digital evidence has been collected, handled, transferred and stored during an investigation. Maintaining an appropriate chain of custody helps demonstrate the integrity of evidence and provides a clear record of who had access to it throughout the investigative process. 

 Yes. Digital Forensics can provide factual evidence and documented findings that support internal investigations and engagement with legal advisers, insurers, regulators or law enforcement. The investigation can help establish what happened, what information may have been affected and what evidence exists to support subsequent decisions.