Table of Contents
- Introduction: Why DevSecOps Changed Security Tooling
- What Application Security Testing Actually Covers.
- The Different Types of Application Security Testing Tools
- What DevSecOps Teams Really Need From AppSec Tools
- The Most Commonly Evaluated Application Security Platforms
- Accuracy vs Alert Noise: The Problem Most Teams Discover Late
- How AppSec Testing Fits Into CI/CD Pipelines
- Vendor Evaluation Pitfalls Security Teams Encounter
- How DevSecOps Teams Should Evaluate AppSec Platforms
- Buyer FAQ
- Conclusion
Introduction: Why DevSecOps Changed Security Tooling
The way security testing was performed on applications was not so different even in recent history. Weeks, if not months, could go into development before features were added into an application. Just before features were about to be pushed into production, security testing was performed, or at least some penetration testing was conducted. Developers would fix the critical issues that arose from these security tests, and the feature would be pushed into production.
Of course, this was all fine and good when development cycles on applications were so slow.
DevSecOps has completely revolutionized the entire application development cycle.
Today’s development cycles on applications are constant. Features that were in source control yesterday could have been pushed into production in the afternoon after being checked into source control in the morning. APIs evolve constantly, and microservices evolve on their own. Infrastructure evolves constantly through deployment pipelines.
Security testing that occurs only at the very end stages of development can no longer keep up with these constant evolution cycles.
Thus, security testing tools that can be integrated into these development pipelines have become more and more popular. Instead of security testing being performed on an
What Application Security Testing Actually Covers
Application security testing examines how software handles input, authentication, and data access.
Although the concept sounds straightforward, modern applications contain many layers that influence security behavior.
Security testing tools typically evaluate:
- how applications process user input
- how authentication tokens are validated
- whether authorization controls are enforced correctly
- how sensitive data is returned through responses
- how APIs expose internal functionality
These tests aim to identify vulnerabilities such as:
- SQL injection
- cross-site scripting (XSS)
- broken access control
- authentication weaknesses
- insecure API behavior
While many vulnerabilities originate in source code, others appear only when an application is running. Security testing tools therefore approach the problem from several different angles.
The Different Types of Application Security Testing Tools
Most DevSecOps security programs combine multiple testing techniques rather than relying on a single tool.
Understanding these categories helps security teams design more effective testing strategies.
Static Application Security Testing (SAST)
SAST tools analyze source code before the application runs.
They search for patterns associated with security weaknesses, such as unsafe function usage or missing validation checks.
Static analysis works well early in development because developers can fix issues before deployment. However, it cannot always predict how different parts of an application will interact at runtime.
Dynamic Application Security Testing (DAST)
DAST is a type of application security testing technology.
DAST tools are used to test running applications.
DAST does not analyze application source codes.
DAST tools interact with running applications from outside by sending requests to them and observing responses from those applications.
This helps them identify application vulnerabilities that are only present in running applications.
For example, an API endpoint may be secure in application source codes, but vulnerable to certain data exposures during certain request sequences to those API endpoints.
Software Composition Analysis (SCA)
Applications today are built on hundreds of open-source libraries.
SCA application security testing tools analyze application dependencies and identify known vulnerabilities in those dependencies.
This is an important feature in application security testing today because modern applications are built on hundreds of dependencies.
Interactive Application Security Testing (IAST)
IAST application security testing tools are a mix of IAST and application code instrumentation.
IAST application security testing tools analyze running applications to identify application vulnerabilities.
What DevSecOps Teams Really Need From AppSec Tools
Each application security testing technology has its own advantages and is used to address different aspects of application security testing.
DevSecOps teams use these application security testing technologies together to achieve better application security testing
CI/CD Integration
The most important requirement is pipeline integration.
Security testing tools should run automatically inside CI/CD systems such as:
- GitHub Actions
- GitLab CI
- Jenkins
- Azure DevOps
Without automation, security testing becomes a manual step that slows delivery.
Developer-Friendly Output
Developers need clear guidance on how to fix vulnerabilities.
Security findings should include:
- reproducible proof of the issue
- clear remediation guidance
- contextual information about the affected code
Tools that produce vague or confusing alerts often struggle to gain developer adoption.
API Security Coverage
APIs now represent a significant portion of application attack surfaces.
Security testing platforms must support:
- REST APIs
- GraphQL APIs
- authentication flows
- schema imports
Without strong API testing capabilities, scanners may miss large portions of the application.
Accurate Vulnerability Validation
False positives are one of the biggest sources of friction between security and development teams.
When developers repeatedly investigate issues that turn out to be harmless, they quickly lose confidence in the tool.
Platforms that validate vulnerabilities before reporting them tend to produce fewer-but more meaningful-alerts.
The Most Commonly Evaluated Application Security Platforms
DevSecOps teams typically evaluate several well-known platforms when selecting application security testing tools.
Commonly considered solutions include:
- Bright Security
- Snyk
- Veracode
- Checkmarx
- Burp Suite Enterprise
- Invicti
- GitHub Advanced Security
Each platform focuses on different parts of the application security lifecycle.
Some emphasize static code analysis. Others specialize in dynamic testing or dependency scanning.
Organizations often combine several tools rather than relying on a single platform.
Accuracy vs Alert Noise: The Problem Most Teams Discover Late
Security teams frequently encounter an unexpected issue after deploying a new testing tool: alert noise.
Many scanners generate large numbers of potential vulnerabilities during their first scans. At first glance this can appear encouraging. The tool seems to be finding many issues.
The problem emerges when developers begin reviewing the findings.
Some alerts turn out to be theoretical rather than exploitable. Others may be duplicates or difficult to reproduce. Developers spend time investigating issues that ultimately require no action.
Over time this leads to alert fatigue.
Security teams eventually realize that vulnerability accuracy matters far more than the total number of alerts.
A tool that identifies ten confirmed vulnerabilities may provide more value than one that reports hundreds of possible problems.
For this reason, many modern AppSec platforms attempt to validate vulnerabilities during scanning rather than relying solely on pattern matching.
How AppSec Testing Fits Into CI/CD Pipelines
DevSecOps environments typically include several stages where security testing can occur.
One common approach involves running scans during pull requests.
When a developer submits code for review, the security scanner analyzes the changes and flags potential vulnerabilities before the code merges.
Another stage involves scanning staging environments.
Here the application is tested in a configuration similar to production, allowing security tools to observe runtime behavior.
Some organizations also perform scheduled scans on deployed applications. These scans detect vulnerabilities introduced by infrastructure changes or new integrations.
Embedding security testing into these stages ensures that vulnerabilities are identified quickly without disrupting development workflows.
Vendor Evaluation Pitfalls Security Teams Encounter
Evaluating security tools can be surprisingly difficult.
Product demonstrations often showcase ideal scenarios that do not reflect real environments.
One common issue involves authentication complexity. Many scanners struggle with multi-step login flows or token-based authentication systems.
Another challenge involves API coverage. Vendors frequently claim strong API support, but deeper testing may reveal limitations when dealing with complex schemas or authentication mechanisms.
Alert noise is another frequent problem. Some tools generate large reports filled with potential vulnerabilities that require extensive manual investigation.
For these reasons, experienced security teams rarely rely solely on vendor demonstrations. Instead they run proof-of-concept tests against staging environments that resemble production systems.
How DevSecOps Teams Should Evaluate AppSec Platforms
A structured evaluation process helps security teams select the right platform.
First, the scanner should be tested against a staging application that reflects real architecture.
Second, authentication workflows should be validated to ensure the tool can access protected endpoints.
Third, findings should be reviewed with developers to determine whether vulnerabilities are reproducible.
Finally, the team should evaluate how easily the scanner integrates into CI/CD pipelines.
This process often reveals operational differences between platforms that marketing materials fail to highlight.
Buyer FAQ
Are application security testing tools capable of running automatically as part of the CI/CD pipeline?
Yes. Most modern AppSec tools support CI/CD tools and will automatically execute the scans as part of the pipeline.
What types of vulnerabilities will AppSec tools identify?
The types of common vulnerabilities that AppSec tools will identify include injection attacks, cross-site scripting, authentication issues, and access control issues.
Do automated AppSec tools replace the need for penetration testing?
While automated tools will complement penetration testing efforts, they will not completely replace the need for penetration testing.
Can AppSec tools test APIs?
Many platforms now include dedicated API testing capabilities, though coverage varies between vendors.
How often should application security testing run?
Many organizations run scans during every build and periodically against deployed applications.
Conclusion
Application security testing has developed with the evolution of application development methodologies.
In DevSecOps environments, it is important that application security tools operate continuously and are integrated well with application development processes.
Tools that disrupt application development processes are less likely to be used. The best application security strategies are those that use a combination of techniques.
Identifying application risks using static analysis, application dependencies, and application runtime testing are some of the techniques used. The best application security strategies are those that use a combination of techniques.
Identifying application risks using static analysis, application dependencies, and application runtime testing are some of the techniques used.
Application development methodologies are constantly evolving, with application architecture evolving from a monolithic system of interaction to a distributed system of interaction.
