In 2025, the annual Data Privacy Week will take place from January 27-31. This week will focus on empowering individuals and businesses to respect privacy and protect data, thereby establishing and promoting trust. While individuals should practice good data protection habits, developers play a crucial role in securing data throughout the software development process—particularly after applications are deployed.
Unprotected applications can be tampered with or reverse-engineered by malicious actors. Many development teams recognize the need to adopt a privacy-by-design approach that considers security from the outset. However, you also need to secure your applications after release using advanced security tools and techniques, such as code obfuscation and encryption measures.
If you’ve followed best practices for coding during the software development process, you may think your application is adequately protected from malicious actors. However, deployed applications are susceptible to risks that can expose your intellectual property and other sensitive data.
Hackers can decompile your software through reverse engineering. This allows them to access or re-create your source code. By doing this, they can analyze your code logic and discover credentials, API keys, and encryption keys that may be hidden in your code. They can discover how your software works and develop methods for bypassing security measures.
By analyzing your binary files, hackers can extract sensitive information, such as passwords and configuration details, that is stored within them. They can also uncover vulnerabilities not mitigated during development, such as buffer overflows or unpatched open-source vulnerabilities.
Mobile apps are particularly vulnerable to these types of attacks, as the 2023 breach of Chick-fil-A’s app demonstrates. Over 71,000 people had their personal data—including banking information—exposed during an attack on the fast-food company’s mobile app. This issue is becoming critical as more companies are releasing mobile apps to provide customers with a fast and convenient way to interact with their brands.
App hardening and obfuscation can protect your apps from attacks such as these by rendering your source code indecipherable to potential hackers.
PreEmptive’s products protect all your applications from reverse engineering attacks through in-app hardening solutions, including the following.
Code obfuscation makes source code impossible to understand or reverse engineer. Obfuscation changes the structure of your code without affecting its functionality, so when bad actors try to analyze your source code, it appears as unintelligible gibberish. Obfuscation includes techniques such as renaming variables, functions, and class names with meaningless characters.
Although renaming is a strong security measure, it’s not enough to protect your application alone. Measures such as control flow obfuscation give you more comprehensive protection. This alters your control flow logic, such as loops and conditionals, making it less predictable and readable. String encryption is another obfuscation method you can use to hide sensitive information, such as API keys. Other obfuscation techniques include function flattening and the insertion of dead code.
In addition to code obfuscation, PreEmptive employs other application hardening techniques, including anti-debugging mechanisms and tamper detection and prevention. Hackers can use debugging tools to understand and manipulate your application’s code. Anti-debugging mechanisms detect when these tools are being used and respond based on predefined settings.
Tamper detection mechanisms detect unauthorized modification attempts. PreEmptive injects code to verify your application’s integrity at runtime. You can set up custom responses, such as shutting down or crashing, in reaction to tampering threats.
ProSearch is an e-discovery platform for law firms to meet electronic discovery, fraud investigation, and compliance requirements. Their application greatly simplifies complex functions for modern law firms. However, it also contains much sensitive data and intellectual property.
To protect their application after deployment, ProSearch used Dotfuscator to harden the app and prevent reverse engineering attempts. Going forward, ProSearch plans to implement JSDefender to protect JavaScript applets during sensitive functions. This protection is included at no additional charge for PreEmptive’s clients.
Strong cybersecurity protection requires a proactive and multilayered approach to counter modern, sophisticated threats. Shifting left can help development teams address security issues early and often throughout the software development lifecycle (SDLC). Tacking on security immediately before deployment is no longer an effective strategy for protecting software. Instead, security needs to be integrated into every development and deployment phase, including post-deployment.
Privacy has to be an ongoing effort, not simply a development concern. PreEmptive tools integrate seamlessly into your DevSecOps workflow, allowing you to incorporate them into your established continuous integration/continuous delivery (CI/CD) pipeline.
Automated tools are an essential part of every development team’s toolkit. Testing and analysis tools such as Kiuwan’s application security platform protect your application during development. Static application security testing (SAST) and software composition analysis (SCA) tools enforce best coding practices and identify and remediate vulnerabilities early in the development process.
PreEmptive protects your application after it’s deployed, so hackers can’t access your source code and tamper with it once it’s installed on users’ devices. Together, Kiuwan and PreEmptive offer end-to-end application protection.
Global regulations are constantly evolving, and they continue to place greater responsibility for protecting data privacy on businesses and developers. As Data Privacy Week illustrates, protecting privacy doesn’t end after development. Instead, companies must ensure that sensitive data is protected after deployment. This ongoing responsibility lasts as long as customers have access to your app.
While offering an app can increase customer satisfaction and loyalty, it also exposes you to potential legal and financial penalties in the event of a data breach. PreEmptive’s full suite of tools can safeguard your applications during the production stage so you can protect your customers, your proprietary data, and your business reputation.
We offer tools to protect your .NET, Android, JavaScript, and other applications. To get started protecting sensitive data, try PreEmptive for free.
