Oracle Database 23c security enhancement..

Oracle Database 23c (often referred to as "23c AI") introduces several new and enhanced security features, particularly focusing on advanced encryption, access control, and data protection mechanisms. Here’s an overview of some of the key security updates in Oracle 23c:

1. Enhanced Data Protection and Encryption

  • Transparent Data Encryption (TDE) Improvements: Oracle 23c enhances the performance of TDE, which encrypts data stored on disk to prevent unauthorized access. The performance optimizations reduce the overhead caused by encryption, making it more efficient for large-scale operations.
  • Native JSON Encryption: In 23c, JSON data stored in the database can now be encrypted natively, ensuring that sensitive JSON content is protected without needing custom encryption mechanisms.

2. Unified Audit Enhancements

  • Advanced Unified Auditing: Oracle 23c continues to evolve its unified auditing framework, making it more granular and efficient. You can now define audit policies that are more precise and specific, improving how security events are tracked and recorded in the database. The improvements in performance reduce the impact of auditing on database operations.

3. Data Redaction Enhancements

  • Dynamic Data Masking: Building on previous versions, 23c introduces more dynamic and flexible ways to redact sensitive information in query results. It allows administrators to set different masking policies based on user roles or session contexts, ensuring that only authorized users can view sensitive data.

4. Zero Trust Architecture and Access Control

  • Zero Trust Security Model: Oracle is moving towards a more Zero Trust architecture where access to database resources is verified continuously based on multiple factors (such as user identity, device, and activity) instead of assuming that users inside the network perimeter can be trusted by default.
  • Improved Role-Based Access Control (RBAC): Role management and privilege assignment have become more flexible in Oracle 23c, supporting better alignment with the Zero Trust model. This includes finer control over administrative privileges.

5. Blockchain Tables with Built-in Immutability

  • Blockchain Tables: Oracle 23c enhances its support for blockchain tables, providing tamper-proof, immutable tables that prevent data from being altered once committed. This feature is useful for sensitive data where legal or regulatory requirements demand immutability.

6. AI-Driven Security Capabilities

  • AI/ML-Based Anomaly Detection: Oracle 23c incorporates machine learning models that can detect unusual patterns of behavior, such as unauthorized access attempts or potential data breaches. This helps automate the detection of security risks by analyzing user behavior and database activity.
  • Automated Threat Mitigation: Using AI, Oracle can automatically react to identified threats by limiting user access or shutting down suspicious queries or sessions.

7. Improved Key Management for Encryption

  • Oracle Key Vault Enhancements: In Oracle 23c, Key Vault is tightly integrated with cloud and on-premises database solutions, simplifying encryption key management, certificate management, and access control for secure communications. Oracle 23c adds support for multi-cloud key management as well.

8. Data Safe Enhancements

  • Oracle Data Safe: Oracle 23c provides deeper integration with Oracle Data Safe, offering comprehensive protection and monitoring tools for sensitive data. Data Safe can now discover sensitive data more effectively and provide recommendations for securing it.
  • Support for On-Premises and Multi-Cloud Deployments: Oracle Data Safe is available not only for Oracle Cloud databases but also for on-premises and multi-cloud environments, broadening its application.

9. Improved Access Control for APIs and Services

  • API Security Enhancements: With the rise of microservices and APIs, Oracle 23c strengthens security around database access via APIs by providing improved access controls and security policies that limit how and when APIs can access sensitive data.

These security features in Oracle 23c aim to address modern data protection challenges, ensuring that databases remain secure in both on-premises and cloud environments while offering enhanced controls, automation, and compliance with evolving security standards.

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