Compare Elastio and Rubrik

Provable Ransomware Recovery vs. Backup-Centric Anomaly Detection

Executive Summary

Rubrik is a strong enterprise backup and recovery tool with immutable backups and fast restores. Its Polaris Radar module adds anomaly detection, but it’s limited to after-the-fact alerts on backups. Elastio delivers provable ransomware recovery: continuous detection of encryption, malware scanning across cloud and backups, and audit-grade proof of clean recovery.

For CISOs and CTOs, Rubrik protects copies of data. Elastio proves those copies and your cloud storage are clean and safe to restore.

What Rubrik Delivers and
Where It Falls Short

Strengths

  • Immutable backup snapshots across AWS and on-prem.
  • Radar anomaly detection highlights unusual backup changes.
  • Threat Hunting scans snapshots for IOCs using YARA rules.
  • Cloud Vault isolates copies (e.g., AWS S3 → Rubrik Vault).

Limitations

  • No ransomware encryption detection in live systems; alerts only after backups complete.
  • Entropy-based anomaly detection can miss small/stealthy attacks and trigger false positives.
  • Limited malware scanning — relies on YARA and known hashes; lacks full AV engines.
  • No resilience for live cloud storage (S3, EFS, Blob, etc.); only secures backup copies.
  • Rubrik publishes high lab accuracy for Radar. In practice, entropy-based anomaly models can miss small or stealthy incidents and generate false positives, which customers must triage. Elastio reduces this risk with behavioral encryption detection and continuous validation.

What Elastio Offers

  • Ransomware Encryption Detection: Behavioral AI flags encryption in EC2, EBS, S3, EFS, FSx, snapshots, and backups as it happens.
  • Continuous Backup Validation: Scans every backup and vault; automatically marks the Last Known Clean recovery point.
  • Enterprise Malware Scanning: Multi-engine AV + AI; goes beyond YARA with retroactive hunts on historical backups.
  • Cloud Storage Resilience: Monitors AWS S3, EFS, FSx, and Azure/on-prem stores directly.
  • Air-Gapped Vault Validation: Verifies AWS LAG and other vaults are free of hidden ransomware.
  • Audit-Ready Proof: Compliance-grade recovery evidence for NYDFS 500.16, DORA, HIPAA, GDPR.
  • Proven Accuracy in Customer Environments: ~99.99% overall accuracy and 98.4% zero-day ransomware detection, validated against live, never-before-seen variants.

Side-by-Side Comparison

Capability

Elastio

Rubrik Polaris Radar

Provable recovery control

✅ Yes

❌ No

Detects ransomware encryption

✅ Yes – live workloads, storage, backups

❌ No – anomaly alerts only after backups

Anomaly/encryption method

✅ Behavioral AI with low false positives

⚠️ Entropy-based ML, prone to misses/false positives

Backup integrity validation

✅ Continuous scans + Last Known Clean label

⚠️ Limited; relies on anomaly signals

Malware detection

✅ Enterprise AV + AI + retro hunts

⚠️ YARA rules & known hashes only

Cloud storage resilience

✅ Monitors AWS, Azure, on-prem storage directly

❌ Backup-only; no live cloud detection

Air-gapped vault validation

✅ Verifies vaults (AWS LAG, etc.) are clean

❌ Not supported

Integrated Incident Response

✅ Yes – built-in IR service with SIEM integration & expert ransomware guidance

❌ Not offered

Strategic role

✅ Provable recovery control (last line of defense)

✅ Backup foundation (fast restore)

Why This Matters for CISOs & CTOs

  • Backups ≠ Recovery: Rubrik ensures you have copies, but not that they’re clean. Elastio proves recovery is safe and ransomware-free.
  • False Sense of Security: Entropy alerts can miss small attacks or over-alert, leaving gaps. Elastio continuously validates every backup and storage location.
  • Regulatory Pressure: Regulators and insurers demand proof of recoverability (NYDFS, DORA). Elastio provides audit-ready reports; Rubrik does not.
  • Board Assurance: Post-incident, leadership asks, “Can we recover cleanly?” Elastio provides a verifiable yes.

Bottom Line

Rubrik = Backup foundation. Rubrik is one of the enterprise leaders for immutable backups and fast restores.

Elastio = Provable recovery control. Layer Elastio to detect ransomware encryption, validate backups and storage, and guarantee a clean restore point across AWS and on-prem.

Together, Rubrik ensures data availability, while Elastio provides the assurance that recovery is ransomware-free and provable for regulators, insurers, and boards.

Frequently Asked Questions

No. It flags anomalies after backup jobs. Elastio detects encryption as it happens.