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Web Application Firewall (WAF)

Imperva Web Application Firewall (WAF) stops application attacks with near-zero false positives. Backed by a global SOC that creates and tests new rules in production so you don’t have to, Imperva WAF allows you to deploy in block mode with confidence.

Protect applications and APIs anywhere

Imperva WAF protects applications in any environment—cloud or on-premises—offering automated policy creation and the lowest total cost of ownership.

Block threats with confidence

Near-zero false positives and managed rules that are written and tested by the Imperva Threat Research team prior to deployment allow more than 94% of Imperva customers to deploy the Imperva WAF in blocking mode.

Empower security analysts

Machine learning automatically identifies attack patterns and correlates security events into a single incident narrative, reducing alert fatigue and enabling security analysts to quickly identify and focus on critical security incidents.

Protect against data breaches

Imperva WAF delivers high security efficacy—effectively blocking threats such as SQL injection, XSS, and other OWASP Top 10 vulnerabilities—safeguarding web applications from potential data breaches and integrity compromises.

Comply with regulations

Organizations must meet strict regulatory standards (GDPR, PII, PCI DSS) to protect sensitive data. Compliance features such as logging, auditing, and access controls ensure adherence to these requirements.

Protect applications anywhere

Flexible deployment options protect applications in public/private cloud, hybrid and on-premises environments.

How Imperva WAF works

High security efficacy

False positives can trap organizations in a dilemma between blocking legitimate traffic or indefinitely monitoring threats. Imperva Research Labs delivers unparalleled precision, allowing customers to confidently block threats as the security landscape shifts. Over 90% of our clients use blocking mode, bolstered by automated policies and rapid rule updates. This empowers security teams to safely utilize third-party code while keeping pace with DevOps.

Proactive managed rules

Imperva Threat Research experts continuously identify new threats from common attack vectors like SQL injection and XSS, create and test new rules in production and proactively push them to you, so you don’t have to spend time creating your own custom rules. Regular daily updates and real-time updates for critical threats assure you have the most up-to-date protection, reducing the burden on security teams to research new threats and manually create rules.

Deploy in block mode, in minutes

With out-of-the-box rules that have been tested in production environments, Imperva can be deployed in blocking mode from the start. In fact, over 90% of customers deploy in blocking mode. As a SaaS solution it is easy to deploy and manage all your sites behind one solution and one dashboard. If your team is large or small, Cloud WAF can help protect your applications in public, private, or hybrid cloud infrastructures.

Security incidents with context

Imperva’s Attack Analytics automatically correlates thousands of security alerts into easily digestible narratives. By leveraging advanced machine learning, it provides unified visibility and contextual information about each incident, including attack origin, methods, and severity. This reduces alert fatigue and empowers security teams to respond quickly and accurately​ to the attacks that matter most.

Automated deployment, configuration, and management

Imperva’s Terraform provider automates Cloud WAF deployments. Through a modular design, Imperva’s Terraform module simplifies complex configurations, enabling teams to manage resources across various environments with greater efficiency. This approach enhances security operations and accelerates deployment times by leveraging modern Infrastructure as Code (IaC) practices​.

Enterprise SSL management

Full management of SSL connections provides business continuity, security governance, automated certificate renewal and domain validation, and centralized observability. With Imperva enterprise SSL management, you can easily scale your certificates, avoid outages, and enhance security while reducing total cost of ownership.

Web Application Firewall (WAF)

Imperva's Web Application Firewall (WAF) provides out-of-the-box security for your web applications. It detects and prevents cyber threats, ensuring seamless operations and peace of mind. Protect your digital assets with Imperva's robust, industry-leading solution.

Which WAF is best for you?

Imperva offers multiple deployment options to meet your needs.

Cloud WAF

Adapt as quickly as your applications using automated policy creation and rule propagation. Minimize the workload for your team and let Imperva handle the policies for you, saving you time and money.

Imperva Cloud WAF

Imperva Cloud WAF delivers industry leading, cloud-based protection for web applications and APIs, blocking attacks in real-time. It integrates bot protection, API security, and machine learning to safeguard against all OWASP Top 10 threats. The platform’s easy deployment and automated updates ensure rapid, effective defense across all cloud environments. Cloud WAF is a Saas-based service managed through the Imperva Management Console.

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WAF Gateway

Deploy application security for legacy applications that are too complex to move into cloud environments. Dynamic profiling and threat intelligence help you decide how to best defend your applications.

Imperva WAF Gateway

Imperva WAF Gateway is an enterprise-level security solution that is designed to protect critical applications and APIs across diverse environments. It combines advanced intelligence for high efficacy threat detection and mitigation for robust protection. With low total cost of ownership and customizable controls, WAF Gateway secures legacy applications that cannot be migrated to the cloud. Local deployment and management makes WAF Gateway an ideal option for customers with data sovereignty requirements.

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Elastic WAF

Protect natively built cloud applications with a WAF designed for Kubernetes environments. With a lean footprint and DevOps/DevSecOps-
friendly integration, Elastic WAF runs where the application is deployed.

Imperva Elastic WAF

Imperva Elastic WAF offers flexible, highly effective web application protection by combining SaaS management with on-premises security. This hybrid approach not only streamlines security operations but also ensures consistent visibility and ease of use. It streamlines security operations, enhances DevOps integration, and reduces Total Cost of Ownership, all while providing customizable, advanced security features for diverse cloud and on-prem environments—the developer first WAF.

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Imperva Elastic WAF

Web Application Firewall FAQs

  • Which Imperva WAF is right for me?

    Ask yourself the following guiding questions:

    • What kind of deployment do you need for your environment?
    • Are there regulations that keep your data out of the cloud?
    • Do you need granular control over your all your rules?
    • Do you have a small security team and need something that ‘just works’ out-of-the-box?
    • Are you devops heavy team?

    Talk to a security expert today.

  • Can I try Imperva WAF before buying?

    Yes you can try a free trial of the Imperva Cloud WAF today. Try for free.

  • What makes Imperva's Web Application Firewall (WAF) effective against web application attacks?

    Imperva’s WAF boasts near-zero false positives and a global Security Operations Center (SOC), ensuring swift protection against emerging threats. This accuracy gives organizations confidence in blocking evolving threats.

  • How does Imperva's WAF help in reducing false positives?

    Imperva’s WAF allows for precise protection, minimizing false positives and empowering security teams to utilize third-party code securely. This includes automatic policy creation and rapid rule propagation, catering to the pace of DevOps operations.

  • How does Imperva scale to support large, diverse application environments?

    Imperva WAF can be deployed in any and all environments; On-premises, in public clouds, in private clouds, and in hybrid environments.

  • How does Imperva WAF help security analysts investigate events?

    Attack Analytics is a cloud-based tool that uses machine learning to analyze and correlate thousands of security events into actionable narratives. It simplifies security investigations by grouping related events, providing context such as attack origin, methods, and severity. This reduces alert fatigue, enabling faster response times and improving the effectiveness of security teams.

  • How does policy management work in Imperva WAFs?

    Policy management in Imperva WAFs allows users to define, deploy, and manage security policies tailored to specific applications. Administrators can create rules to block malicious traffic, protect against bot attacks, and enforce security standards across cloud and on-premises environments. Policies are highly customizable, and automated updates ensure scalability and adaptability to evolving threats​.

  • What regulations does Imperva WAF help me comply with?

    WAF deployment complies with several HIPAA, PCI DSS,ISO 27001, and Common Criteria requirements. Imperva WAF also meets GDPR standards and NIST requirements. Learn more.