CSS Antivirus for Managed File Transfers vs CSS Malware Protection for Azure Blob: Side-by-Side Comparison (2026)

Short answer

Mid-market and enterprise teams transferring sensitive files through AWS Transfer Family need antivirus scanning that doesn't bottleneck large file ingestion, and CSS Antivirus for Managed File Transfers handles that by scanning in-flight without the performance penalties of bolt-on solutions. The tool covers NIST PR.DS and PR.PS across malware, ransomware, and data classification in one deployment, meaning you're not stitching together separate tools for detection and quarantine. Skip this if your file transfer volume is light or you're not standardized on AWS; the value equation breaks down outside heavy Transfer Family usage patterns. Organizations storing files in Azure Blob Storage need malware scanning that doesn't force data movement or require a separate security appliance, and CSS Malware Protection delivers that by running detection inside your tenant with three selectable engines (ClamAV, Sophos, CrowdStrike) and real-time scanning on upload. The in-tenant architecture satisfies data residency requirements while covering NIST DE.CM continuous monitoring through daily definition updates and automatic quarantine policies. Skip this if you need retrospective scanning across petabyte-scale archives or depend on a vendor with larger professional services capacity; CSS's 24-person team means you're mostly self-sufficient on integration and tuning.