Steps To Planning And Implementation Of Application Security

By   Dr. Muhammad Malik
InfoSec Leader & Editor-in-Chief , Information Security Buzz | Mar 08, 2023 06:26 am PST

Securing your application is of utmost importance in today’s world, where cybercrime is becoming more prevalent. Application security is a critical component of software development that helps to protect against various cyber threats and attacks. Most organizations spend a lot of time, money, and resources to keep hackers and threats that come from the Internet from getting into their networks.

But no matter how good a defense is, more is needed to fix the problems at the application layer inside the network. This article provides an in-depth guide to planning and implementing application security, outlining the steps to secure your application effectively.

Understanding The Risks And Threats

When it comes to application security, one of the most critical steps is identifying potential risks and threats. This involves analyzing both the internal and external factors that could compromise the security of your application. Some of the most common risks and threats that you should consider include the following:

  • Malware and Viruses:

Malware and viruses are one of the most prevalent threats that can harm your application. They can infect your system through phishing scams, email attachments, or other vulnerabilities. Once infected, they can steal sensitive data, corrupt or delete files, and even harm the entire system.

  • Unpatched Software:

Unpatched software is another common risk to your application’s security. Hackers can exploit vulnerabilities in outdated software, which can lead to unauthorized access to your system and data. Without regular updates and patches, your application could be vulnerable to attacks from cybercriminals.

  • SQL Injection Attacks:

SQL injection attacks are a common form of cyber attack where hackers exploit vulnerabilities in your application’s code to gain unauthorized access to your database. They can manipulate data or even gain administrative access to your system by injecting malicious code.

  • Cross-Site Scripting (XSS):

Cross-Site Scripting (XSS) is a vulnerability that allows attackers to inject malicious scripts into a website viewed by other users. If exploited, XSS can allow attackers to steal sensitive information, control user accounts, or even redirect users to malicious websites.

  • Insider Threats:

It is one of the most significant risks to application security. They can come from employees or contractors who have access to your application’s data and systems. They can intentionally or accidentally damage your application’s security, steal data, or share confidential information with unauthorized users.

Defining the Application Security Requirements

In order to ensure your application is secure, it’s essential to establish precise security requirements for your application. This means defining the types of data your application will handle and the level of security needed for each type of data. Here are some basic steps to help you define the security requirements for your application:

  • Identify the types of data your application will handle:

The first step is to identify the types of data your application will handle, such as personal, financial, or confidential business data. Each type of data has its own security requirements, so it’s essential to define the types of data your application will handle clearly.

  • Determine the level of sensitivity for each type of data:

Once you’ve identified the types of data your application will handle, the next step is to determine the level of sensitivity for each type of data. This will help you ascertain the appropriate level of security needed to protect the data.

  • Identify the potential threats to your application:

You need to identify the potential threats to define the appropriate security requirements for your application. This includes both internal and external threats, such as cyber-attacks, data breaches, and unauthorized access to your application.

  • Analyze the potential impact of each threat:

Once you’ve identified the potential threats to your application, you need to analyze the potential impact of each threat. This will help you prioritize which threats need to be addressed first and how to allocate resources for security measures.

  • Establish the security requirements for your application:

Based on your analysis of the types of data your application will handle, the level of sensitivity for each type of data, and the potential threats to your application, you can now establish the security requirements for your application. This includes identifying the specific security controls that will be used to protect your application and the level of security needed for each type of data.

  • Ensure compliance with legal and regulatory requirements:

Depending on the type of data your application will handle, legal and regulatory requirements need to be defined when considering the security requirements. For example, if your application handles personal data, you may need to comply with data protection regulations such as the General Data Protection Regulation (GDPR).

By following these steps to define the security requirements for your application, you’ll be able to establish a clear and comprehensive security plan that meets the needs of your business and protects your valuable data from potential threats.

Designing the Security Controls

Designing the security controls for your application is a critical step in protecting it from potential threats and vulnerabilities. When creating security controls, it is essential to consider the potential risks and threats identified in the previous section. Here are some additional steps to follow when designing security controls:

  • Determine the appropriate security controls for your application:

The security controls you choose will depend on the level of security needed for your application and the types of data it handles. For example, a financial application that handles sensitive financial information will require more robust security controls than an e-commerce application that handles only customer contact information.

  • Apply industry-standard security practices and guidelines:

It is crucial to use industry-standard security practices and guidelines to ensure that your application is secure. Some standard security practices to consider include data encryption, user authentication and authorization, data backup and recovery, and secure coding practices.

  • Consider implementing a secure development lifecycle (SDLC):

An SDLC is a set of practices designed to ensure that security is integrated throughout the software development process. An SDLC typically includes security requirements, design, implementation, testing, and maintenance. By integrating security into every stage of the development process, you can reduce the likelihood of vulnerabilities being introduced into your application.

  • Choose the appropriate security technologies and tools:

Many different security technologies and tools can help you protect your application. Some common examples include firewalls, intrusion detection systems, and antivirus software. When selecting security technologies and tools, it is essential to consider their effectiveness, ease of use, and cost.

  • Develop a security policy:

A security policy is a set of rules and guidelines that outline how your application should be secured. By developing a security policy, you can ensure that everyone involved in the development and maintenance of your application is aware of the security requirements. Your security policy should cover access control, data handling, and incident response areas.

By following these steps, you can design security controls tailored to your application’s specific needs and provide robust protection against potential threats and vulnerabilities.

Implementing Security Controls

After designing the security controls, the next step is to implement them effectively. This involves integrating the security controls into your application’s code, infrastructure, and processes and testing them to ensure that they work as intended.

Implementing security controls is a complex process that requires careful planning and coordination with your development and operations teams. You need to ensure that the security controls do not impact your application’s functionality or performance and that they are easy to manage and maintain.

Monitoring And Maintenance

Securing an application is an endeavor that requires consistent and persistent effort. Maintaining an application’s security necessitates a proactive response to emerging risks and threats and continual monitoring. The following section will look into the requisite steps in complete detail.

In order to uphold the security of your application, it is imperative that you conduct regular security audits. These audits identify any new risks, threats, and vulnerabilities that may have been overlooked during the application’s initial implementation phase. You should perform these audits at least annually or more frequently if significant alterations have been made to the application or its environment.

Patch management is one of the most critical and vital maintenance tasks. All software is inherently susceptible to vulnerabilities, and as a result, vendors regularly issue security patches aimed at rectifying these weaknesses. The prompt application of these patches is a necessary component of maintaining the security of your application. Incorporating patch management into your routine maintenance schedule is highly recommended.

Logs hold essential and valuable information that can be used to recognize potential risks and security incidents. Consequently, conducting regular log analysis is necessary to ensure your application is secure. This process aids in the detection of suspicious activity patterns and unauthorized access attempts.

Despite the presence of robust security measures, security incidents can still occur. To mitigate the effects of such incidents, it is vital to have an incident response plan in place. Your incident response plan should include steps to identify, contain, and resolve security incidents.

Human error is one of the primary causes of security breaches. Ensuring that all employees are cognizant of the significance of security, and possess the knowledge and skills required to maintain the security of the application, is crucial. Regular training and education programs can assist in ensuring that all employees are up-to-date with the most current security practices and guidelines.

Regular security reviews are an additional measure that can be employed to identify any new risks and vulnerabilities that may have arisen due to changes in the application or its environment. It is strongly recommended to conduct security reviews whenever significant changes are made to the application or its environment.

In summary, monitoring and maintenance are essential aspects of maintaining the security of your application. Regular security audits, patch management, log analysis, incident response, employee education, and regular security reviews are all crucial elements of a comprehensive application security strategy. Adhering to these steps will help ensure that your application is secure and protected from potential risks and threats.


In conclusion, planning and implementing application security is a critical process that requires careful planning, design, implementation, and maintenance. Remember that securing your application is an ongoing process that requires continuous effort and vigilance. Following the steps detailed in this article, you can effectively secure your application against potential risks and threats and ensure your data and systems remain protected. Understanding the risks and threats can better protect your application and data from attacks. In the next section, we’ll discuss how to define the security requirements for your application.

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