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External attack surface management

Uncover your known and unknown digital assets like a hacker would and reduce application risks with quantified attack surface exposure

Mapping your web application attack surface

External facing applications provide crucial revenue streams and are the main source for connecting you with your customer base. However, they can become a source of exploitation for hackers if they contain vulnerabilities. With application development evolving at high speed, security leaders must understand the attack vectors and unknown assets that hackers could use to enter the system.

Our external attack surface management tool is the only solution to provide real time visibility of your application attack surface whilst pinpointing potential cyber risks in your digital ecosystem. The tool enables organizations to visualize their security exposure against the most common entry points for application attacks and highlight areas that require immediate attention for effective risk management.

🛍️ Retail study: US retail applications have a larger attack surface than EU >>

web application attack surface

Common attack vectors and security exposure

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Security mechanisms 

Using HTTP websites without encryption and unsecured redirects can expose your sensitive data to hackers and lead to credential stuffing. Identify if correct authentication exists and apply restriction controls to prevent unauthorized access

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Page creation method

Developing a website with insecure code means there are more potential vulnerabilities to exploit. Scout locates where out of date code languages and vulnerable components in your application exist helping you ensure a secure release and reduce cyber risks

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Degree of distribution

The sheer number of application pages and unknown assets is a breeding ground for exploitable vulnerabilities and a challenge for risk management. Easily identify every page interlinking every domain to uncover potential entry points for hacker exploits

expert web application surface attack


Authentication is the process of verifying the identity of a user accessing your application in real time. Restricting access to sensitive data is critical to keeping the bad guys out and reducing your application risk

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Input vectors

The attack surface increases with the number of different input fields you have on a web application and can lead to a range of Cross-Site Scripting attacks if these are left unaddressed before production

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Active content technologies

When an application runs scripts the content becomes active. You need to know if your web app has been developed using vulnerable and outdated active content technologies to reduce security exposure

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Cookies are an essential security control for website security by monitoring session activity in real time and ensuring anyone who sends requests to your website are authorized and keeps hackers away

Attack surface analysis http

Open ports

Usage of HTTP port 80 rather than the more secure HTTPS port 443 makes your application susceptible to unauthorized access. It’s important for security teams to identify open ports and close down those not in use 

How we assess your application attack surface

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Unmask your digital footprint like a hacker

Scout simulates multi-discovery techniques used by hackers during the reconnaissance stage to gather and uncover known, unknown assets and domains that you may have missed

reduce time web application surface analysis

Assess applications against common attack vectors

Next, it evaluates your applications against the 7 most common vectors used by hackers to locate open pathways and security weakness that could give them a foothold into your applications

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Visualize your attack surface with instant insights

Scout then provides a spiderweb view of your application risks to pinpoint your biggest risks and potential vulnerabilities that require immediate attention or further assessment to mitigate risk

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Quantify the attack surface for ongoing mitigation

Presents quantifiable attack surface scoring with risk based insights which can be shared with developers and security leaders to boost security best practice and improve long-term risk management

"The most significant value we’ve realized since using Outpost24 is the ability to more clearly view the impact and severity of risks that we are exposed to" 

Security Manager, Global Media & Entertainment Company

Find out more about external attack surface management

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Web application attack surface Webinar

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