Elastio looks in the data. Rubrik looks above it. Rubrik keeps backups immutable and available. Elastio proves whether the data inside those backups is clean. They answer different questions and work best together.
Inspection layer
Elastio opens every file and examines its contents. Rubrik reads file system metadata, pre-computed hashes, and YARA patterns.
Zero-day coverage
Elastio detects zero-day ransomware without a known hash. Rubrik's Turbo Threat Hunting relies on known hashes, so a zero-day variant with no published hash is outside its scope by design.
Intermittent encryption
Elastio detects ransomware that encrypts alternating 4KB blocks. Rubrik's entropy and metadata signals do not reliably fire on this pattern.
Scanned file scope
Elastio inspects content inside databases, logs, archives, and structured data files. Rubrik's Turbo Threat Hunting scans executable and script file types under 15 MB.
Data coverage
Elastio hunts across live data, replicated data, and backups continuously. Rubrik focuses on backup data.
Recovery point
Elastio identifies and continuously maintains the Last Known Clean recovery point. Rubrik provides immutable snapshots and orchestration.
Two questions
Two questions. Two products.
Rubrik and Elastio each answer a fundamentally different question about what happens after an attack.
Rubrik
“Can we restore our data if we are hit?”
Immutable snapshots: ransomware cannot encrypt or delete backups
Snapshot orchestration and rapid restore workflows
Anomaly detection based on file system metadata, entropy, and behavior
Hash and YARA matching for known threats in executables and scripts
Cloud vault isolation for offsite copies
SIEM and SOAR integration for backup events
Outcomedata is available for restore
Elastio
“Is the data we are restoring actually clean?”
Deep File Inspection opens every file and examines its contents
Hunts across live data, replicated data, and backups continuously
Detects zero-day ransomware and intermittent encryption
Last Known Clean recovery point, continuously maintained
Provable recovery evidence for regulators and boards
Deterministic pass or fail on every restore point
Outcomerestore point integrity is provable
Latest Rubrik Release
What Rubrik's December 2025 release does and does not change
In December 2025, Rubrik announced Behavioral Anomaly Analysis and the general availability of Turbo Threat Hunting for NAS Cloud Direct. Both strengthen Rubrik's metadata-layer detection. Neither changes the layer at which detection occurs.
What Rubrik shipped
Behavioral Anomaly Analysis. Evaluates appended file extensions, burst write activity, and environment baselines to flag ransomware-like behavior without relying on a static list of bad extensions.
Turbo Threat Hunting GA. Pre-computes MD5, SHA1, and SHA256 hashes during backup ingestion. Supports up to 100 hashes per hunt. Rubrik reports scanning approximately 80,000 snapshots per minute against the hash catalog.
Scanned file scope. Executable and script file types under 15 MB. Windows extensions including .exe, .dll, .bat, .ps1, .cmd, .js, .vbs, and related types.
Source: rubrik.com/blog, December 2025 announcements
What did not change
The detection layer. Behavioral Anomaly Analysis operates on file system metadata. It does not open the file or examine the contents.
The coverage gap for zero-day payloads. Turbo Threat Hunting relies on known hashes. A zero-day variant with no published hash is outside its scope by design.
The coverage gap for data files. Scanning scope is executables and scripts. Payloads embedded in databases, logs, archives, or structured data files fall outside what Rubrik inspects.
Intermittent encryption. Attackers that encrypt alternating blocks leave metadata signals weak or unchanged. Behavioral and entropy signals do not reliably fire.
The Gap
Rubrik reads signals above the data. Modern ransomware lives inside it.
Every Rubrik detection capability, including Anomaly Detection, Threat Monitoring, Turbo Threat Hunting, and Behavioral Anomaly Analysis, operates on file system metadata, pre-computed hashes, or YARA patterns. None open the file.
Metadata has blind spots by design.
Extension analysis, burst activity, and entropy are signals about the file. Not observations of what is inside. A payload engineered to leave metadata unchanged leaves Rubrik's engine with nothing to flag.
Known-hash scanning misses zero days.
Turbo Threat Hunting queries pre-computed hashes of executables and scripts. Up to 100 hashes per hunt. A zero-day variant with no known hash is invisible by design.
Intermittent encryption stays invisible.
Modern ransomware encrypts alternating 4KB blocks. Entropy change stays negligible. File sizes unchanged. The backup completes flagged clean. The restored data is not.
Alert fatigue is a real cost.
Metadata-based models require calibration to manage false positive volume. SOC teams running Rubrik at scale know this. Real events get buried in noise.
Capability Comparison
Side by side: what each product covers
Across availability, hunt types, data coverage, and recovery assurance. All Rubrik entries reflect capabilities documented in Rubrik's product pages and technical documentation as of March 2026.
Turbo Threat Hunting (100 hashes per hunt, executables and scripts)
~Partial or scope-limited
—Not in scope
Deep File Inspection (opens and examines file contents)
—Not in scope
✓Covered
Zero-day ransomware detection without known hash
—Not in scope
✓Covered
Intermittent encryption detection
—Not in scope
✓Covered
Detection inside data files (databases, logs, archives, structured data)
—Not in scope
✓Covered
Data Coverage
Live data
—Not in scope
✓Covered
Replicated data
—Not in scope
✓Covered
Backup data
~Partial or scope-limited
✓Covered
Recovery Assurance
Deterministic pass or fail on each restore point
—Not in scope
✓Covered
Last Known Clean recovery point
—Not in scope
✓Covered
Resilience RPO (R-RPO)
—Not in scope
✓Covered
Provable recovery compliance reporting
—Not in scope
✓Covered
✓Covered
~Partial or scope-limited
—Not in scope
After a Breach
Three questions every CISO is asked
01
How was the recovery point selected?
Rubrik answers this. Immutable snapshots and orchestration are designed for exactly this question.
02
How did you confirm the restore was clean?
This is the question Rubrik's architecture is not built to answer. It requires inspection inside the file, not signals above it. Elastio answers this.
03
What caused the downtime to last that long?
The answer depends entirely on whether question two could be answered before the incident started. Without a provable clean point, recovery becomes serial trial-and-error across snapshots.
Source: Rubrik Zero Labs, State of Data Security 2025.
Proof of Concept
Run a recovery integrity assessment in your environment
Thirty minutes. Your data. Your Rubrik deployment. We show you exactly what Rubrik's current detection catches and what it does not.
01
Advanced ransomware techniques are applied against a copy of your backup data. You see what your current detection surface catches in place.
02
Elastio hunts the same data with Deep File Inspection. Any payload found is surfaced. The Last Known Clean recovery point is identified.
03
Side by side output. Alert volume, precision, and the confirmed clean recovery point. Documented. Timestamped. Audit ready.
If no material gap is found, you retain validated confirmation of your current posture. If a gap is found, you reduce recovery exposure before an adversary tests those assumptions.
What is the core difference between Elastio and Rubrik?
Rubrik asks "Can we restore our data if we are hit?" Elastio asks "Is the data we are restoring actually clean?" Rubrik keeps backups immutable and available; Elastio inspects file contents to prove the data inside those backups is clean.
Does Rubrik's December 2025 release close the gap Elastio addresses?
No. Behavioral Anomaly Analysis operates on file system metadata. It does not open the file or examine the contents. Turbo Threat Hunting relies on pre-computed hashes; a zero-day variant with no published hash is outside its scope by design.
What files does Rubrik's Turbo Threat Hunting scan?
Executable and script file types under 15 MB, including Windows extensions such as .exe, .dll, .bat, .ps1, .cmd, .js, and .vbs. Payloads embedded in databases, logs, archives, or structured data files fall outside what Rubrik inspects.
Why does intermittent encryption stay invisible to Rubrik?
Modern ransomware encrypts alternating 4KB blocks. Entropy change stays negligible. File sizes are unchanged. The backup completes flagged clean. The restored data is not.
How fast is Rubrik's Turbo Threat Hunting?
Rubrik reports scanning approximately 80,000 snapshots per minute against the hash catalog. Each hunt supports up to 100 hashes.
Can Rubrik and Elastio be used together?
Yes. Rubrik handles availability (immutable snapshots, orchestration, rapid restore). Elastio handles content integrity (Deep File Inspection, Last Known Clean recovery point). They answer different questions and work best together.
What did Rubrik's 2025 Zero Labs research find about backup compromise?
Rubrik's own 2025 research, covering more than 1,600 security leaders, found that 74% of organizations had their backup and recovery systems at least partially compromised, and 86% paid a ransom to recover.