Cengiz Özemli
Akademisyen
- Thread Author
- #1
At the heart of the major changes in cybersecurity is the zero-trust architecture, especially as adopted by the U.S. federal government. This approach has re-emerged to overcome the flawed security policies and designs of the past three decades.
The cost of cybercrime is expected to reach $8 trillion by the end of 2023 and $10.5 trillion by 2025. Many organizations experienced a 25% or more increase in cyber threats after COVID-19. By 2025, 45% of global organizations are expected to be affected by supply chain attacks.
Traditional security methods are no longer sufficient against the increasing capabilities of cyber attackers. While vulnerabilities reported by ethical hackers increased by 21% in 2022, 92% of these vulnerabilities cannot be detected by traditional scanners. The consequences of this situation include reputational damage, legal penalties, increased security spending, operational disruptions, and the leakage of confidential business information.
### U.S. Government's Call for Zero-Trust Architecture
The U.S. White House issued Executive Order 14028, "Improving the Nation's Cybersecurity," to protect critical infrastructure and federal networks. This executive order called for a transition to a zero-trust architecture, along with measures such as SBOM (Software Bill of Materials). The zero-trust model shifts defenses away from static network perimeters to focus on users, assets, workflows, and resources. It does not allow implicit trust based on physical location, network location, or asset ownership; every access request is verified.
### Advantages of Zero-Trust Architecture
- Enhances security by providing advanced risk management.
- Limits spread in the event of an attack.
- Makes business scaling sustainable as security moves to resources and network segments.
- Facilitates the implementation of universal security policies.
- Increases the accuracy and speed of network monitoring and alerts through artificial intelligence and automation.
- Ensures an accurate and complete inventory of all network resources.
### Zero-Trust Tools and Management
This model utilizes various security tools such as zero-trust network access (ZTNA), integrated identity and access management tools, multi-factor authentication, and secure web gateways. The management of these tools, the verification of the data they produce, and the use of this data to strengthen the zero-trust architecture are critically important.
### Conclusion
The zero-trust architecture is seen as an effective solution against increasing cybersecurity risks. However, due to complex planning processes, many organizations struggle to fully implement this model. For a successful zero-trust implementation, all resources, processes, and users on the network must be clearly defined, end-to-end security must be ensured, and network visibility must be increased using appropriate tools.
