Perimeter 81 vs Cofense: Email Security Comparison (2026)
An independent side-by-side comparison of Perimeter 81 and Cofense for email security buyers — pricing, features, integrations, and how often each is cited by major AI engines.
AI Citation Scorecard
How often each is cited by major AI engines when buyers ask email security questions. Last 90 days across ChatGPT, Perplexity, Gemini, Claude, and Copilot.
Too early to call — probes still building data.
ChatGPT
Perimeter 81
Tracking…
No data yet
Cofense
1 / 6 probes
17%
AveragePerplexity
Perimeter 81
Tracking…
No data yet
Cofense
3 / 7 probes
43%
GoodGemini
Perimeter 81
Tracking…
No data yet
Cofense
0 / 6 probes
0%
InvisibleClaude
Perimeter 81
Tracking…
No data yet
Cofense
1 / 6 probes
17%
AverageCopilot
Perimeter 81
Tracking…
No data yet
Cofense
0 / 6 probes
0%
InvisibleScale:NoneLowFairStrongExcellent
Probes run hourly; each (engine × query) combo retests every ~3 days.
Pricing
Key Features
Perimeter 81
Feature data is being indexed.
Cofense
- ✓AI-driven campaign detection
- ✓Human-validated threat intelligence
- ✓Automatic quarantine of threats
- ✓Improves SOC efficiency
When to choose Perimeter 81
Choose Perimeter 81 if your team prioritizes its strengths over Cofense's. Full guidance populates as Perimeter 81's feature data is indexed.
When to choose Cofense
Choose Cofense if your team prioritizes its strengths over Perimeter 81's. Full guidance populates as Cofense's feature data is indexed.