Holistic Cyber ​​Security: Layered Defense Strategy from Data to Management

Here are the three main layers of a holistic cybersecurity and compliance ecosystem, guiding standards and certifications

1. Base Layer: Management and Control

The outermost protective shell of security is the "management framework" that decides how the processes will be managed. Standards and processes are defined here.

• ISO 27001 (ISMS): Information Security Management System is the main backbone of the entire ecosystem. It guarantees the confidentiality, integrity and accessibility of information.

• ISO 22301 (Business Continuity): How operations will continue in the event of a crisis or disaster is determined by this standard.

• ISO 27031 (IT Readiness): The infrastructure is ready for any interruption with disaster recovery plans. is provided.

• PCI-DSS: It is indispensable for the processing security of financial data and credit card information.

2. Middle Layer: Network and System Security

It is the protection of the infrastructure that surrounds the data and connects it to the outside world. This layer is the "front line" where cyber attacks are first encountered.

• ISO 27033 & 27032: Active defense is made against cyber threats with network segmentation, VPN security and cyberspace security.

• ISO 27034 (Application Security):The aim is to make software development processes (SDLC) secure (Security by Design) from the very beginning.

• Incident Management (ISO). 27035): Quick response to security breaches, analysis and ensuring resilience are the duties of this layer.

3. Inner Core: Data and Privacy

At the center of defense lies Data, the most valuable asset of the institution. All outer layers actually exist to protect this core.

• ISO 27017 & 27018:This is where the security of data in the cloud environment and the protection of personal data (PII) in the cloud come into play.

• ISO 27701 (Privacy Management):Legal assurance is provided by the management of personal data and KVKK/GDPR compliant privacy controls.

• Data Privacy:The ultimate vision of "Complete Security" (Integrated Security) Its goal is to keep this core away from unauthorized access.

Conclusion: Integrated Security is a Must

Cyber ​​security is not a destination, but a continuous journey. The "Full Security" we see in the image is only possible if these layers work in harmony with each other. Regularly testing this structure with independent process audit reports always keeps the organization one step ahead against cyber threats.