
As the software development industry and threat landscape continue to evolve, Forrester’s State of Application Security Report for 2021 shows that web applications are still a major attack vector. In 2020 and 2021 shift to remote work drove companies to rely on applications in the cloud even more, which explains why the research shows that web applications are the most common form of external attack, followed by software vulnerabilities.
Here are the main takeaways from the report, covering why applications remain a top attack vector, application security trends, and which tools and processes organizations should put into place to achieve an effective application security strategy.

The report lists three main reasons why web applications will continue to be a main vector for external attacks:
- The continuous growth in open source usage. Open source software are typically not packaged with enterprise grade security protections at the code level, in order to retain the open source licensing model. Further open source libraries publish their code in order to be open source, allowing cyber attackers to create custom intrusions by reverse engineering. Thus the more open source code is operationalized without appropriate additional security protection at the code level, the more the chances for an organization to fall prey to a Cyberattack.
- A substantial increase in security research, resulting in a rise in the number of reported security issues including a high number of API vulnerabilities. Cyber attackers have access to and read these same reports, allowing them to leverage these vulnerabilities to mount massive zero-day vulnerability attacks.
- The growing popularity of containerized environments, which suffer from a high volume of code and configuration issues. This provides easy targets for Cyber attackers.
Improving Application Security
According to the report, many organizations plan to prioritize improving their AppSec profile in the upcoming year, and 21% of security decision-makers surveyed said their companies will prioritize building security into development processes. Here are achievable recommendations that can help organizations bake security into the software development life cycle (SDLC).
- Integrate automated application security testing into the DevOps pipeline – a practice that is now relatively easy to adopt with “prerelease testing products offering deep integrations with core development tools like Azure DevOps, GitHub, Jenkins, and Jira.”
- Security pros and security teams should nurture communication between security and development teams and embrace automated security testing tools throughout development.
- Finding ways to speed up remediation once security issues are detected. It’s important to combine the vulnerability scan results to both improve visibility and get vulnerability prioritization right so that the most urgent issues are remediated swiftly. application security tools should not stop at detection, rather provide automated support for prioritization of security issues.
- Provide developers with remediation guidance, and automate work processes like sign offs for policy creation and exceptions.
- Create tools that developers love. As advanced AppSec tools focus on developers, it’s important security professionals collaborate with development teams to ensure security is woven into development workflows. As the software development ecosystem evolves “new development methodologies mean changes to the traditional security paradigms.” This calls for investing in updated application security tools that can be easily integrated in future application development plans and architecture. Increasingly security tools in DAST (dynamic application security testing), cloud security, security as a platform, and WAF (Web Application Firewall) are gaining major traction and purchase in this space.
- Cultivate developer security champion programs in order to promote a shared sense of ownership over security tasks. This will help organizations ensure that the shift left approach is being implemented and that security is addressed early in the development process.
- Incorrect implementation of application functions related to authentication and session management are serious issues. They make it easier for attackers to compromise passwords, keys, or session tokens or exploit other implementation flaws. Clearly understanding how to avoid such incorrect implementations, creating a culture of secure coding practice, and leveraging static code analysis in SDLC are key to avoiding such costly fundamental mistakes. OWASP has a great article discussing the top 10 application security risks as observed in 2021.
- Invest in acquiring and regularly reviewing Threat Intelligence pertaining to the industry. “Knowing thy enemy” is a crucial saying in the landscape of Cybersecurity. It is important for any organization to get a better understanding what kind of cyber attackers tend to target their industry and what type of information these attackers tend to target. This kind of knowledge helps to further strengthen protection for those critical targets.
Encouraging Treands
The report points to some encouraging trends when it comes to the integration of automated security testing tools into the DevOps pipeline and advises that “new development approaches call for new tooling, and firms must keep up with the evolving protections to protect emerging application architectures.”
- Data shows, security pros continue to invest in shifting security left, implementing testing tools early in the development process, understanding that this shift enables quicker remediation.
- There is an increased focus on API security, while container security lags behind, despite the growing popularity of containerized environments.
Supply Chain and Critical Infrastructure Attacks
The Forrester report addresses the emergence of supply chain attacks, which have recently featured heavily in the news. The report reminds readers that it’s important to focus on the wider open source threat landscape.
While it’s important to pay attention to security risks to the supply chain, the report urges organizations to remain aware of open source security risks. It’s as important as ever to continuously detect and remediate vulnerabilities in open source libraries in order to ensure security and keep products and customers safe.
Critical Takeaway
According to the report, Forrester analysts discovered ‘ a number of promising trends that could lead to improvements in application security’, including an increased focus on the OWASP Top Ten and on-device application security testing, as well as a focus on security during the build phase in the Software Development Life Cycle (SDLC), via the use of DevSecOps methods that can be used to increase application security. According to the report, many organizations plan to prioritize improving their AppSec profile in the upcoming year, and 21% of security decision-makers surveyed said their companies will prioritize building security into development processes.