Addressing insider attacks via forensic-ready risk management

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Authors

DAUBNER Lukáš MACÁK Martin MATULEVIČIUS Raimundas BÜHNOVÁ Barbora MAKSOVIĆ Sofija PITNER Tomáš

Year of publication 2023
Type Article in Periodical
Magazine / Source JOURNAL OF INFORMATION SECURITY AND APPLICATIONS
MU Faculty or unit

Faculty of Informatics

Citation
Web https://www.sciencedirect.com/science/article/pii/S2214212623000182
Doi http://dx.doi.org/10.1016/j.jisa.2023.103433
Keywords Forensic readiness; Digital forensics; Forensic ready systems; Risk management; Insider attacks; Information security
Description Cyberattacks perpetrated by insiders are difficult to prevent using traditional security approaches. Often, such attackers misuse legitimate access to the system to conduct an attack, or an external attacker manipulates or masquerades as an insider to gain access, bypassing the security controls. A possible solution to this problem are forensic-ready software systems that support the eventual forensic investigation. For example, assuring that appropriate evidence of an attack would be generated and assessable if needed. While not primarily aimed at prevention, the controls of forensic-ready systems can be used to ensure reliable post-incident investigation in the case of an insider attack. Currently, however, there is a gap in adequate methods for identifying requirements and assessment of such systems. Therefore, we propose FR-ISSRM, a risk management approach to derive the forensic readiness requirements addressing insider attacks. The requirements, once implemented, assist in the reliable uncovering culprit, root cause, damage of the attack, and overall improvement of security posture. The approach is then demonstrated in three cases covering typical insider attacks.
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