Ensuring data defensibility in the cloud (SEC226)

Key Takeaways

Cloud Security and Ransomware Challenges

  • Despite high security spending, cyber attacks continue unabated in cloud environments.
  • Cloud attacks are surging, and ransomware loves the cloud. The price of failure is sky-high, with devastating downtime costs.
  • 71% of organizations experienced a cloud security breach in the last year, and 30% of ransomware attacks in 2024 targeted cloud-hosted data.
  • Attackers exploit weak security controls, such as misconfigurations, to gain access and encrypt or exfiltrate data.

Comprehensive Cyber Resilience Strategy

  • A comprehensive data-centric cyber resilience strategy is a must-have to prevent data breaches and avoid double extortion.
  • This includes eliminating unnecessary data, limiting access, continuously assessing data posture, and monitoring activity within the environment.

Amazon S3 Durability and Reliability

  • Amazon S3 achieves 11 nines of durability through end-to-end integrity checking, storing data across redundant devices, and periodic durability auditing.
  • Data is persisted across multiple Availability Zones, ensuring availability and durability.

Real-World Examples and Challenges

  • Examples of data overexposure, data locality issues, and uncontrolled data movement highlight the need for visibility, collaboration, and consolidated tooling across security, compliance, and operations.
  • Key challenges include data defensibility, metadata defensibility, and tool consolidation to address overlap and reduce costs.

Recommendations

  1. Establish a comprehensive data-centric cyber resilience strategy.
  2. Leverage Amazon S3's durability and reliability features to protect cloud-hosted data.
  3. Improve visibility, collaboration, and tool consolidation across security, compliance, and operations teams.
  4. Address data defensibility and metadata defensibility to ensure resilience against attacks.

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