Cloud Storage Security vs Obsidian Security - SaaS Pre-Exfiltration: Side-by-Side Comparison (2026)

Short answer

Healthcare security teams storing genomics or clinical research data in AWS need Cloud Storage Security for one reason: it scans petabyte-scale datasets without egressing data from your environment, which matters when you're handling PHI under HIPAA and HITRUST. The tool covers all major AWS storage surfaces (S3, EFS, EBS, FSx) with daily malware definition updates and audit-ready logging that satisfies 21 CFR Part 11, so compliance reporting actually works. Skip this if your data lives primarily in Azure or GCP, or if you need broader data governance beyond malware detection and PHI tagging. Mid-market and enterprise security teams drowning in SaaS alert noise need Obsidian Security - SaaS Pre-Exfiltration because its ML-based behavior baselining actually reduces false positives instead of just tuning thresholds. The vendor maps detections to MITRE ATT&CK and includes specific coverage for helpdesk social engineering and SSPR abuse, attacks that generic SIEM rules consistently miss. Skip this if your team lacks the bandwidth to integrate with SIEM or SOAR; Obsidian's value compounds when alerts feed into incident response workflows, not when they sit in a separate console.