What's New in MetaDefender Storage Security 4.4.0
MetaDefender Storage Security 4.4.0 is now available. This release introduces Redis-based load balancing, attribute-based access control, two new storage integrations, automatic recovery for stuck scans and remediations, and a sweep of reliability fixes across real-time scanning, upgrade paths, and integrations.
Who Benefits from this Release
Enterprise security teams finally get per-storage permission control for compliance-grade access management. For organizations operating across multiple teams or business units, that means access policies can now match organizational structure — not just technical roles.
Platform and DevOps engineers get scans that no longer stall silently, async cleanup, and message queues that don't drop on restart. Less firefighting, more predictable operations.
Storage and infrastructure teams gain two new integrations: Scality RING for on-premises petabyte-scale environments and Azure Blob Storage with automatic container discovery. This update brings more of the storage estate under consistent scanning policy with less manual setup.
What Customers Get
Automatic Recovery for Stuck Scans and Remediations
New guardrails detect and resolve stuck scans and remediations automatically. FTP move and copy workflows now reliably deliver files to their destination. Large-bucket scans on Alibaba and Box no longer fail at scale. The platform manages edge cases, not the operator.
Intelligent Scan Load Balancing and Throughput Scaling
The scanning service now uses intelligent load balancing to optimize throughput across workloads. Discovery-only scans have configurable throttling and retry policies. The system self-regulates rather than requiring a separate load balancer service.
Attribute-Based Access Control
A new "Settings: Access Control" tab shows default roles and their permissions. Multiple roles can now be assigned per user, so access policies map to how your organization actually operates.
Two New Storage Integrations
Scality RING extends MetaDefender Storage Security coverage to on-premises S3-compatible object storage where regulated data in financial services, government, and healthcare often lives because it cannot go to the cloud. Organizations running Scality at petabyte scale can now apply the same scanning policy across on-prem and cloud environments. Azure Blob Storage auto-discovery eliminates manual container configuration. Connect a storage account and MetaDefender Storage Security finds the rest automatically.
RTP Start Date
An optional "Pick files modified since" date picker has been added to the RTP scan modal, so older files - including OneDrive uploads that retain their original LastModified date - can now be included in the scan.
Accurate Live Dashboard State and Scan Counts
Dashboard workflow cards, scan counts, and report views now show accurate, live state. Stale data and misleading indicators (a common source of operator confusion) are resolved across the board. Scan reports now show total and processed file sizes, giving operators a clearer picture of scope and progress. Running scans can be stopped directly from the Report tab without navigating elsewhere.
How MetaDefender Storage Security 4.4.0 Was Built
Redis Load Balancer, RabbitMQ Fanout Queues, and Async Cleanup
Redis now powers the scanning load balancer directly, and the separate load balancer service is gone. RabbitMQ fanout queues are created on publish, so messages survive subscriber restarts rather than silently disappearing. Cleanup of large database tables runs in the background, meaning service restarts no longer block or corrupt in-flight operations.
Improved Integration Reliability across the Connector Library
Large-bucket scans on Alibaba RAM Role now complete reliably. Box RTP handles users with no files correctly. FTP move and copy workflows deliver files to their destination. For the full list of connector fixes across NetApp, SharePoint, and Dell EMC Isilon, see the release notes.
Per-Service Logging and Scan Report Improvements
Each service now writes separate error and warning log files, so isolating an incident no longer means grepping through a shared log. Scan reports now show total and processed file size, giving operators a clearer picture of scope and progress without having to query separately. API queries that drove report views are faster too, with unnecessary ordering removed from file and audit count lookups.
MetaDefender Storage Security 4.4.0 Availability and Upgrade Notes
MDSS 4.4.0 is available now. For the full list of resolved issues and technical details, see the release notes.
