Forensics is an essential part of cybersecurity, and any cyber incident has to solve through cyber forensics team who can find out the exact issue and how the mishap takes place. In this chapter, you will learn about the needs and objectives of cyber forensics and how to approach a crime or incident and some categories of incident handling.
What is Cyber Forensics?
Cyber forensics, which is also known as computer forensics, is a practice of capturing, collecting, processing, analyzing, and reporting on digital data in a legally permissible approach. This part of cybersecurity mainly deals in detecting and preventing cybercrime and in any issues and incidents where evidence is stored in a digital format. The forensics investigators use specific methodologies where evidence regarding any crime is discovered and put forward in the Court of Law.
Organizations and companies hire cyber forensics for analyzing these cyber-related crimes and incidents the cybercriminals can be found and punished through the court of law.
What Are the Needs of Computer Forensics?
Here are some of the useful points about why computer forensics is required:
- Detection and pretension of crime.
- They survey a crime scene that is associated with any digital evidence.
- Search and identify data that is related to cybercrime in any digital asset.
- Digital evidence can be easily destroyed if not handled properly. Cyber Forensic Investigators are competent in handling that digital evidence.
- Cyber forensics can also help in recovering encrypted, deleted, or corrupted files.
Primary Objectives of Cyber Security Forensics Investigators
- For recovering, analyzing, reporting, and presenting computer-oriented materials in such a way that it can be easily demonstrated and presented in the form of evidence in the court of law.
- For identification of evidence in a short time frame, and estimate the overall menace and impact of the malicious cyber activity on the victim user or organization and suggest for protection against the attack.
Steps or Stages of Forensics Investigation
There are some specific ways of approaching for tracking a cybercriminal or go to a solution of how the cybercrime took place. The steps are:
- The incident occurred in any company or organization.
- The employees or members contact the company's advocate for legal advice.
- Advocate contact cyber forensics investigator (external or internal).
- The forensics investigator will come and prepare the FRP, i.e., First Response Procedure documentation.
- The investigator then seizes the evidence and other assets related to the crime scene and transports them to a forensics lab.
- He/she will start analyzing the files and other assets.
- Examine all the data one after another and may further contact the person or group of people associated with the incident.
- The report will be formed and concludes the investigation, where all the analysis will be written and explained.
- The report is then handled to the organization's legal authorities.
- The legal authority will then go through the report(s) and will press charges against the offensive in the court of law.
- The forensics investigator will delete all the data once the entire case is closed.
What is Incident Handling?
Cybersecurity and forensics have another essential terminology that is often used in this field - incident handling. Computer security incidents are some real or suspected offensive events that are related to cybercrime and cybersecurity as well as computer networks. Forensics investigator or internal cybersecurity professionals are hired in organizations to handle such events and incidents which are known as incident handlers.
Incidents are categorized into three types:
- Low-level incidents: where the impact of cybercrime is low.
- Mid-level incidents: where the impact of cybercrime is comparatively high and need security professionals to handle the situations.
- High-level events: where the impact of cybercrime is the most serious and need security professionals as well as forensic investigators to handle the situations and analyze the scenario, respectively.