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Head-to-head · User Threat Prevention Software

Abnormal Security vs Authentic8 Silo

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Abnormal Security #4 in User Threat Prevention Software 8.6/10 Pricing on request ✓ 3 of 5 features Visit site
Authentic8 Silo #8 in User Threat Prevention Software 7.8/10 30-day trial Free trial✓ 0 of 5 features Try Authentic8 Silo

Abnormal Security leads on 0 checks, Authentic8 Silo on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreAbnormal Security · 8.6/10
  • Free trialonly Authentic8 Silo
  • Most featuresAbnormal Security · 3 of 5

Abnormal Security scores higher on our rubric for user threat prevention software: 8.6 against 7.8 out of 10; our editors rank them #4 and #8.

Abnormal Security is the better fit for mid-market and enterprise email threat teams. Authentic8 Silo is the better fit for enterprises needing isolated, controlled browsing.

  • Abnormal Security fits best

    Mid-market and enterprise email threat teams

  • Authentic8 Silo fits best

    Enterprises needing isolated, controlled browsing

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Side by side

Feature Abnormal Security 8.6/10 Visit ↗ Authentic8 Silo 7.8/10 Visit ↗
At a glance
Editor score 8.6 7.8
Ranking #4 in User Threat Prevention Software #8 in User Threat Prevention Software
Best for Mid-market and enterprise email threat teams Enterprises needing isolated, controlled browsing
Pricing model Paid Paid
Starting price Pricing on request $1,450/user/yr
Free plan — —
Free trial — 30 days
Deployment Cloud Cloud
Platforms Web Web
Support Email, Phone, Tickets, Docs Tickets, Docs
Compliance SOC 2, ISO 27001, GDPR SOC 2, ISO 27001, GDPR, HIPAA, PCI DSS, SSO/SAML
Integrations 14 integrations 7 integrations
Built for Mid-market, Enterprise Mid-market, Enterprise
Features Abnormal Security 3/5 · Authentic8 Silo 0/5
Phishing simulations ✓ (best) Not checked yet
Browser isolation Not checked yet Not checked yet
Attachment sandboxing Not checked yet Not checked yet
User report button ✓ (best) Not checked yet
Automated remediation ✓ (best) Not checked yet
Specs
Protected channels Multi_surface Not checked yet
Our review
Pros
  • Detects phishing, BEC, and account takeover using email and identity signals
  • Automates malicious-email remediation and reported-message triage
  • Extends messaging security to Slack, Teams, and Zoom
  • Runs web code in a cloud environment away from endpoints and networks.
  • Combines malware scanning, file-transfer controls and built-in DLP.
  • Records sessions and provides encrypted audit logs and chain-of-custody records.
Cons
  • No free plan; pricing is quote-based
  • Cloud deployment only
  • Focused on organizational email, identity, and collaboration security
  • Annual plans start at $1,450 per user, making entry costly.
  • The offering focuses on web browsing rather than broader threat prevention.
  • The Trial plan has limited egress nodes.
Our verdict

Email threats rarely stay confined to an inbox. Abnormal Security is a cloud-based behavioral security platform for organizations seeking protection against phishing, business email compromise, vendor fraud, and account takeover across…

Read the review →

For teams handling risky web access or investigations, Authentic8 Silo runs web code in an isolated cloud environment, keeping browsing activity and content away from endpoints and networks. Its stated audience includes government,…

Read the review →
  1. Abnormal SecurityUser Threat Prevention Software 8.6Pricing on request
  2. Authentic8 SiloUser Threat Prevention Software 7.830-day trial

Strengths and trade-offs

  • Abnormal Security — where it wins

    • Detects phishing, BEC, and account takeover using email and identity signals
    • Automates malicious-email remediation and reported-message triage
    • Extends messaging security to Slack, Teams, and Zoom

    Where it doesn't

    • No free plan; pricing is quote-based
    • Cloud deployment only
    • Focused on organizational email, identity, and collaboration security
  • Authentic8 Silo — where it wins

    • Runs web code in a cloud environment away from endpoints and networks.
    • Combines malware scanning, file-transfer controls and built-in DLP.
    • Records sessions and provides encrypted audit logs and chain-of-custody records.

    Where it doesn't

    • Annual plans start at $1,450 per user, making entry costly.
    • The offering focuses on web browsing rather than broader threat prevention.
    • The Trial plan has limited egress nodes.
  • Abnormal Security8.6/10 · Pricing on request

    Behavioral threat detection and automated response for email and identity teams.

    Visit siteFull verdict →
  • Authentic8 Silo7.8/10 · 30-day trial

    Isolates web activity in the cloud with controls for files, data loss and auditing.

    Try Authentic8 SiloFull verdict →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update