Digital forensics combines general forensics with information technology. Its goal is to investigate suspicious incidents that occur on computer systems. This means that it records, analyzes and evaluates the digital traces of cybercriminals.
After the potentially relevant incident has been classified, it is examined using special analysis methods and presented in a manner appropriate to the target group.
The starting point for incident response is also the starting point for digital forensics. Therefore, the most important question for digital forensics is first whether the hacker is still on the network. This factor often determines how extensive the damage could be and how acute the need for action is.
For the search for clues, it is essential not to change anything at the digital crime scene. This is the same as in the real world. The IT specialists then try to find out whether it was a harmless attack or a targeted cyberattack. At the same time, they look for possible access points and escape routes that perpetrators could have exploited.
First, the cyber analysts investigate all the circumstances surrounding the security incident. This involves securing the digital fingerprint of the perpetrator. It is also necessary to reconstruct the course of events. This makes it possible to determine what sensitive data has fallen into his hands. It may be that data was not only stolen, but even altered or destroyed.
Introducing digital forensics in a company is not always easy. This is because the GDPR in particular must be taken into account. One option is to build up the necessary skills internally. Alternatively, it is possible to hire a specialist for this purpose. An external partner is usually the easiest option. After all, this is a critical and important topic for corporate security. With the help of implementation roadmaps, the necessary requirements can be met and the right products selected.
The right expertise is essential for digital forensics: Qualified employees ideally have a background in law enforcement. This way, they know which aspects are necessary for an upcoming court case. They should also specialize in digital forensics and be familiar with the most important tools. Regular training is particularly crucial in this regard.
The regulatory documentation obligation is particularly important - it should not be neglected under any circumstances. This affects all incidents that occur in the company with regard to IT security.
Incident response is an important part of any business. It is an organized approach to minimize the damage caused by IT incidents. With the guidelines in place, security breaches are fewer and recovery times are shorter. The basis for this is an elaborated Incident Response Plan, which takes effect in case of doubt.
Digital forensics, also called computer forensics, is used to investigate suspicious incidents. According to the BSI (German Federal Office for Information Security), such an investigation is part of emergency management within a company. To ensure that digital forensics can be carried out properly, it is made up of three phases:
Different tools can be used for digital forensics. Reverse engineering of malicious files or malware is common, where digital documents are searched for unwanted infections. The most important tools include:
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