DSPM: Discover, classify, and defend critical cloud data.

Continuous Auditing of Your Cloud Configuration

While FIM monitors the contents of your buckets, Data Security Posture Management (DSPM) focuses on the configuration of the buckets themselves. In an S3-compatible cloud storage environment, each bucket has dozens of security settings: whether encryption is enabled, file versioning, public access policies, replication rules, logging configurations, Object Lock for immutability, and more.

A single misconfiguration, a bucket accidentally made public or encryption disabled during a migration, can expose terabytes of sensitive data to the internet or leave them accessible without cryptographic protection.

DSPM is the discipline of automating continuous configuration audits, comparing configurations against security benchmarks and frameworks (CIS benchmarks, NIST frameworks, and PCI DSS requirements), and immediately detecting any configuration drift or non-compliance.

The challenge is straightforward but critical: in an organization managing dozens or even hundreds of S3 buckets across multiple teams, regions, and projects, maintaining a consistent security posture manually is impossible.

A developer creates a new bucket for testing, forgets to enable encryption, and inadvertently transfers a customer database into it. An administrator modifies a bucket policy to resolve an access issue and accidentally grants public access.

A cross-region migration disables versioning on a bucket containing critical backups. These configuration drifts, which remain invisible without dedicated tooling, create windows of vulnerability that attackers can exploit or lead to regulatory violations carrying potentially enormous fines (up to 4% of global annual turnover under the GDPR).

tamper's DSPM capabilities continuously score the security posture of each bucket against CIS AWS Foundations and Azure Foundations best practices. Specifically, for every audited bucket, the system checks a set of controls:

• Is Block Public Access enabled to prevent accidental public exposure?
• Is at least SSE-S3 encryption configured, or a stronger option such as SSE-KMS with managed keys?
• Is versioning enabled to support recovery following accidental deletion or a ransomware attack?
• Is access logging enabled to track who accesses which data?
• Does MFA Delete protect against malicious deletions?

Each control that passes contributes points, while each failure deducts points. An overall score out of 100 provides an immediate indication of the security maturity of your storage infrastructure.

The DSPM approach transforms compliance from a one-off annual task into a continuous, automated process. Instead of waiting for the annual audit to uncover a non-compliant bucket, you have access to a real-time dashboard showing exactly where things stand.

For your CISO, this means complete visibility into actual exposure. For your operations teams, it provides a prioritized roadmap for continuous improvement.

Beyond technical compliance, DSPM delivers strategic value in data governance and cyber risk management. When applying for cyber insurance, demonstrating a high DSPM score and a documented continuous improvement process provides tangible evidence of your risk reduction efforts, factors that may influence insurance premiums.

During pre-acquisition due diligence or customer audits, particularly those involving sector-specific certifications such as HDS for healthcare or SecNumCloud, having automated, timestamped audit reports on cloud storage compliance can significantly accelerate the process.

For your sales teams handling tenders that require cloud security assurances, DSPM becomes a competitive differentiator: “Our storage infrastructure is continuously audited against CIS benchmarks, and we maintain a compliance score above 95%.”