Verify

Continuously verify every vendor’s security profile

Perimeter Verify continuously monitors each vendor’s external attack surface and compares it to vendor's responses - exposing gaps and delivering a real-time view of vendor risk.

How Hard Am I to Breach?

Book a Complimentary Breach‑Difficulty Mini‑Assessment, and get a complete map of one vendor’s attack paths with prioritized fixes your team can action immediately.

AI-Powered Accuracy - Backed by Real-Time Data

Correlate AI-reviewed documentation with live attack surface data - so every answer is verified, every discrepancy is flagged, and nothing is taken at face value.

AI interprets vendor documentation while Perimeter Verify confirms responses with real-world attack surface data

Attack Surface Management and policy evidence are aligned for increased accuracy

Each discrepancy is flagged for review - no blind trust

Ensures responses reflect reality, not just words

Real-Time Validation
with Zero Manual Effort

Continuously validate vendor responses with real-world data - no manual effort, no blind trust. Real-time visibility across your ecosystem, automated end-to-end.

Validates vendor responses using live attack surface intelligence

Correlates attack surface insights with vendor-submitted assessments

Fully automated - no need for manual review

Monitor vendor posture alongside your own

Integrated directly into the Assessments module

Sourced Internally.
Built Intelligently.

Perimeter Verify sources its own real-time attack surface data - delivering unmatched freshness, scoring precision, and prioritized insights tied to real threats.

Attack surface data is internally sourced for unmatched freshness

No reliance on purchased or stale batch data

Real-time risk score across numerous categories, including exposed infrastructure and email security

Customer-defined scoring logic for business-specific risk context

Vendors get access to findings at no cost for fast remediation

Vendor risk is no longer a guessing game

Built for regulated industries, Perimeter delivers real-time clarity, industry-trusted validation, and proven results - without the manual guesswork.

Easy-to-understand dashboards and real-time alerts

Used by cybersecurity professionals across high-compliance sectors

4.8 stars on G2

Trusted by top teams with thousands of third-party vendors

What Users Say

Yan S.

Manager of Cybersecurity Operations

Customer Experience is Great!

The Perimeter team has been incredibly receptive to feedback and requests for help. Perimeter has been essential to us being able to track and be able to complete security assessments.

Jaimin P.

Senior Risk Manager

Best Vendor Management Tool!

Perimeter was very fast for our team to implement and start using. They also have an unlimited user model, which works in our favor, and the platform is straightforward to use.

Ryan K.

Principal Consultant

GREAT ASSESSMENT PLATFORM

Perimeter is an extremely easy-to-use and flexible assessment platform. The tool is agnostic to any one methodology. It can be customized to your company’s specific rule sets to measure vendor’s risk or leverage one of Perimeter’s templates. Their support team is super helpful if you want to get more detailed, and the team is always willing to help walk you through something.

Bella R.

Senior Cybersecurity Risk Manager

Perimeter has great features!

Perimeter provides a user-friendly interface, customizable workflows, integration capabilities with other systems, and its ability to centralize and manage vendor information effectively.

Danny F.

Account Executive

I consider Perimeter experts!

Perimeter is intuitive and the knowledge base helps a ton with responding to RFP's and client assessments that we receive. As a salesperson, it is super helpful to have pre-approved responses that we can leverage to respond to questions.

Robert P.

Director of Security

Vendor Risk Management made simple

Perimeter ensures we are answering questions from different clients the same, and also saves us a lot of time to do it.

Omar C.

Information Systems Security Manager

Great tool for our company

The integration with Excel sheets and the ability to work with websites seamlessly has been a tremendous asset for me on audits.

Nupur V.

System Security Analyst

Excellent with Data Processing

The Perimeter team was really proactive in engaging with requirements. I would say very comitted and positive team. They were also flexible with the changing requirements and delivered the product within the project timeline.

Derek P.

Information Security Analyst

I didn't know I needed it, now I have to have it

If you want a tool that comes pre-populated and you can start using day one, get this one. If you want a tool and is highly customizable and can quickly be modified to suit your needs. If you want a tool that has excellent support, use this one. I'm certain there are things that Perimeter doesn't do excellently, but I haven't found them yet.