Imperva Web Application Firewall vs Sophos Firewall (XGS)
Both Imperva Web Application Firewall and Sophos Firewall (XGS) are capable WAF solutions. The right choice depends on your specific infrastructure, budget, and feature requirements.
Overview
Imperva Web Application Firewall and Sophos Firewall (XGS) are both popular web application firewall solutions. This comparison will help you understand the key differences and choose the right one for your needs.
Enterprise-grade cloud WAF with industry-leading threat research, offering comprehensive application security with advanced bot protection and API security.
Next-gen firewall (SFOS on XGS appliances) with a built-in reverse-proxy Web Application Firewall via its Web Server Protection module; the active successor to the end-of-life Sophos UTM.
Quick Comparison
| Feature | Imperva Web Application Firewall | Sophos Firewall (XGS) |
|---|---|---|
| Overall Rating | 4.4/5 | 3.8/5 |
| Free Tier | No | Yes |
| Pricing Model | Custom enterprise pricing | Appliance plus subscription (varies by appliance and subscription bundle) |
| Ease of Use | 3.5/5 | 3.9/5 |
| Value for Money | 3.7/5 | 4.0/5 |
| Support | 4.5/5 | 3.8/5 |
| Platforms | Any web application, AWS, Azure, GCP, Kubernetes, on-premise | XGS Series hardware appliances, virtual (VMware, Hyper-V, KVM), software/Home Edition, and cloud (Firewall in AWS and Azure) |
| Compliance | SOC 2, PCI DSS, HIPAA, ISO 27001, ISO 27017, ISO 27018 | Common Criteria, FIPS-validated cryptography (model dependent) |
Pricing Comparison
Imperva Web Application Firewall
Model: Custom enterprise pricing
Pro
Starting ~$59/month
Business
Starting ~$299/month
Enterprise
Custom pricing
Sophos Firewall (XGS)
Model: Appliance plus subscription (varies by appliance and subscription bundle)
Free Tier AvailableHome Edition
Free
Xstream Protection (Commercial)
Custom pricing
Features Comparison
Imperva Web Application Firewall
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Advanced Bot Protection
Machine learning-powered bot detection that distinguishes between legitimate users, good bots, and malicious automation.
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API Security
Discover, classify, and protect APIs with schema validation, anomaly detection, and positive security model.
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Account Takeover Protection
Detect and prevent credential stuffing and account takeover attacks using behavioral analysis.
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Client-Side Protection
Monitor and protect against client-side attacks like Magecart, formjacking, and supply chain compromises.
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Attack Analytics
AI-powered analysis of security events to identify attack campaigns and reduce alert fatigue.
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Virtual Patching
Immediate protection against known vulnerabilities while you work on permanent fixes.
Sophos Firewall (XGS)
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Reverse-Proxy WAF
Apache-based reverse proxy that protects published web servers against SQL injection, cross-site scripting, directory traversal, and other common web attacks.
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Form Hardening
Signs and validates form fields to prevent manipulation of submitted web forms.
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URL Hardening
Restricts accessible URLs based on the learned structure of the protected application.
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Cookie Signing
Cryptographically signs cookies to detect and block tampering.
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Reverse-Proxy Authentication
Adds basic or form-based authentication policies in front of published web servers via WAF rules.
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Antivirus Scanning
Scans uploads and traffic to protected web servers for malware as part of Web Server Protection.
Which One Is Right for You?
The best WAF depends on your specific requirements, infrastructure, and team expertise.
Imperva Web Application Firewall
- You need: Large enterprises, organizations with sophisticated security requirements, companies needing advanced bot management, regulated industries
- You're using: Any web application, AWS, Azure, GCP, Kubernetes, on-premise
Sophos Firewall (XGS)
- You need: Organizations already running Sophos Firewall, businesses wanting WAF and network security in one appliance, home labs and educational users via the free Home Edition
- You want to start with a free tier
- You're using: XGS Series hardware appliances, virtual (VMware, Hyper-V, KVM), software/Home Edition, and cloud (Firewall in AWS and Azure)
We recommend evaluating both options with a trial or free tier before committing. Consider your existing infrastructure, team expertise, compliance requirements, and budget.
Frequently Asked Questions
Which is better for startups: Imperva Web Application Firewall or Sophos Firewall (XGS)?
Sophos Firewall (XGS) offers a free tier while Imperva Web Application Firewall does not, making Sophos Firewall (XGS) more accessible for budget-conscious startups. Sophos Firewall (XGS) scores higher for ease of use (3.9/5), which is valuable for smaller teams. Consider your immediate security needs and growth plans when choosing.
Which has better support: Imperva Web Application Firewall or Sophos Firewall (XGS)?
Imperva Web Application Firewall has a higher support rating (4.5/5) compared to Sophos Firewall (XGS) (3.8/5). However, support quality can vary based on your plan tier - enterprise customers typically receive more responsive support from both providers. Consider evaluating support during a trial period.
Which is easier to implement: Imperva Web Application Firewall or Sophos Firewall (XGS)?
Sophos Firewall (XGS) scores higher for ease of use (3.9/5) versus Imperva Web Application Firewall (3.5/5). The actual implementation effort depends on your existing infrastructure and team expertise.
Which is more cost-effective: Imperva Web Application Firewall or Sophos Firewall (XGS)?
Sophos Firewall (XGS) offers a free tier while Imperva Web Application Firewall requires a paid plan. Sophos Firewall (XGS) scores higher for value (4.0/5). Total cost depends on your traffic volume, required features, and support level needs.
Which works better with AWS: Imperva Web Application Firewall or Sophos Firewall (XGS)?
Both Imperva Web Application Firewall and Sophos Firewall (XGS) support AWS deployments. Consider whether native AWS integration or cross-cloud portability matters more for your use case.