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Elastio vs. Rubrik

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.

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

Outcome: data 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

Outcome: restore 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.

Bottom line

Rubrik's December 2025 release improves how well Rubrik reads the signals above the data. The layer where ransomware actually lives, inside the file, is still unread. That is the gap Elastio closes.

The Gap

Read the Accuracy Gap report →

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.

CapabilityRubrikElastio
Availability
Immutable backup snapshots✓-
Snapshot orchestration and rapid restore✓-
Cloud vault isolation✓-
SIEM and SOAR integration for backup events✓✓
Hunt Types
Anomaly detection on backup metadata~✓
Behavioral anomaly analysis (extensions, burst activity)~✓
Known-hash scanning (MD5, SHA1, SHA256)~✓
YARA rule matching~✓
Turbo Threat Hunting (100 hashes per hunt, executables and scripts)~-
Deep File Inspection (opens and examines file contents)-✓
Zero-day ransomware detection without known hash-✓
Intermittent encryption detection-✓
Detection inside data files (databases, logs, archives, structured data)-✓
Data Coverage
Live data-✓
Replicated data-✓
Backup data~✓
Recovery Assurance
Deterministic pass or fail on each restore point-✓
Last Known Clean recovery point-✓
Resilience RPO (R-RPO)-✓
Provable recovery compliance reporting-✓
✓ Covered~ Partial or scope-limited- Not in scope

After a Breach

Three questions every CISO is asked

  1. 01

    How was the recovery point selected?

    Rubrik answers this. Immutable snapshots and orchestration are designed for exactly this question.

  2. 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.

  3. 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.

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. The question is no longer whether backups exist. It is whether recovery is provable.

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.

  1. 1

    Advanced ransomware techniques are applied against a copy of your backup data. You see what your current detection surface catches in place.

  2. 2

    Elastio hunts the same data with Deep File Inspection. Any payload found is surfaced. The Last Known Clean recovery point is identified.

  3. 3

    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.

Request the assessmentSpeak with an expert

30 minutes. We run the demo in your environment.

References

  1. 1. Rubrik Anomaly Detection, product page
  2. 2. Rubrik blog, Anomaly Detection Behavioral Analysis (Dec 2025)
  3. 3. Rubrik blog, Turbo Threat Hunting GA for NAS Cloud Direct (Dec 2025)
  4. 4. Rubrik Threat Monitoring, product documentation
  5. 5. Rubrik Threat Hunts, product documentation
  6. 6. Rubrik Zero Labs, State of Data Security 2025
  7. 7. CISA Advisory AA24-242A, intermittent encryption techniques
  8. 8. Elastio Hunt Engine
  9. 9. Elastio Accuracy Gap

All product capabilities are current as of March 2026 and sourced from public documentation. Elastio is not affiliated with or endorsed by Rubrik.

Elastio vs. Rubrik | Inspection, not inference.