Outpost24 External Attack Surface Management is a commercial external attack surface management solution by Outpost24. Wallarm API Security is a commercial API security solution by Wallarm. Features, integrations, deployment and the company behind each one, side by side.
What our shortlists say about the one we picked.
Best for: Teams wanting inline API blocking without specifications
Wallarm earns its place because it can start blocking before your APIs are documented, which helps when your specs lag behind the code. It runs hybrid, so you can put the filtering where your traffic is. Before you choose it, test its blocking modes on your busiest APIs, because a wrong block there lands on real users.
From Best API Security Solutions for Business, Fall 2026
Reviewed by Nika (Nikoloz) Kokhreidze.
Cloud platform for continuous visibility & mgmt of external attack surfaces
Inline API discovery and protection platform blocking attacks, abuse, and ATO.
See more solutions in this category, or build a security stack from your picks.
Based on what each listing shows: deployment, company size, price and open source.
Outpost24 External Attack Surface Management fits if you want a cloud product.
Wallarm API Security fits if you need both cloud and on-premises options.
Common questions when comparing Outpost24 External Attack Surface Management vs Wallarm API Security for external attack surface management.
Outpost24 External Attack Surface Management: Cloud platform for continuous visibility & mgmt of external attack surfaces. Built by Outpost24.
Wallarm API Security: Inline API discovery and protection platform blocking attacks, abuse, and ATO. Built by Wallarm.
The table above shows where their features, integrations, deployment and company size fit differ.
Outpost24 External Attack Surface Management is made by Outpost24. Wallarm API Security is made by Wallarm. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
In part. Outpost24 External Attack Surface Management and Wallarm API Security are not in the same category on CybersecTools. Use the table above to see where features, deployment and company size fit differ.
Need the answer fast? Best Attack Surface Management Solutions for Business picks Palo Alto Networks Cortex Xpanse, Microsoft Defender EASM, Mandiant Attack Surface Management and 4 more.See the shortlist
