informationssäkerhetsledningssystem

Informationssäkerhet, or information security, is the discipline of protecting information and information systems from unauthorized access, use, disclosure, disruption, modification, or destruction. It aims to preserve the confidentiality, integrity, and availability of data, supporting trusted operations and compliance. The practice encompasses people, processes, and technology, and it applies across organizational boundaries and critical infrastructure.

Core concepts include the CIA triad—confidentiality, integrity, and availability—which guide risk-based decisions about who can access data, how it is guarded, and how disruptions are handled. Effective informationssäkerhet requires ongoing risk assessment, governance, and a lifecycle approach that covers creation, storage, transmission, use, and disposal of information.

Organizations implement a range of technical, administrative, and physical controls to reduce risk. Examples include access control and authentication, encryption, backups, patch management, monitoring, incident response, and disaster recovery planning. Employee training and security awareness are essential to counter social engineering and insider threats, as are diligence in vendor risk management and supply chain security.

International and national frameworks provide structured guidance. ISO/IEC 27001 and 27002 describe management systems and controls for information security, while standards such as NIST SP 800-series offer detailed controls. Legal requirements, including data protection regulations like the European Union's GDPR, reinforce privacy and security obligations and encourage privacy-by-design.

For organizations, implementing informationssäkerhet involves defining policies, assigning roles, conducting regular audits, and continuously improving measures in response to evolving threats and technologies.