Cell App Security: Strengthening the Weak Spot of Mobile Development

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With the exponential growth of mobile applications across various platforms, including smartphones and smartwatches, ensuring the security and privacy of these apps has become crucial. As reported by Forbes, the number of mobile applications has reached an impressive 8.93 million[^1^]. Unfortunately, statistics reveal a discouraging reality when it comes to mobile app security. High-risk vulnerabilities were found in 38% and 43% of iOS and Android applications, respectively, according to data collected by a security audit firm[^2^]. These security lapses can lead to significant financial losses, with the cost of mobile data breaches for an enterprise reaching as high as $26.4 million[^3^].

To bridge this security gap, implementing secure development practices and comprehensive mobile app testing is essential. In this article, we will discuss six steps that can help enhance overall mobile app security and prevent breaches.

Keep mobile apps secure

Multi-factor Authentication

Implementing strong multi-factor authentication (MFA) is of utmost importance in ensuring the security of mobile apps. MFA requires users to provide multiple proofs or elements before gaining access to a system. These elements include passwords, PINs, physical devices, tokens, and unique traits known as biometrics. Biometric technology, such as fingerprint and face recognition, voice recognition, and behavioral analytics, has greatly advanced and provides robust security measures. Incorporating biometrics into MFA not only addresses security concerns but also offers users peace of mind.


Secure Data Storage

Insecure data storage is one of the top risks faced by mobile applications, according to the Open Web Application Security Project (OWASP) Mobile Top 10 risks. Shockingly, 76% of tested mobile applications demonstrated data storage vulnerabilities, potentially compromising user privacy and security[^4^]. Mobile apps often collect and store sensitive user information, such as personal data, geolocation data, credentials, and credit card information. Adversaries can gain access to this insecure data through stolen devices or malware installed on jailbroken phones. To protect sensitive data, mobile apps should avoid storing it on the device unless absolutely necessary. Additionally, data should be encrypted at rest using AES encryption with 256-bit keys to ensure end-user confidentiality.

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Security for applications

Code Obfuscation

Reverse engineering poses a significant threat to mobile app security, as it allows attackers to decompile an application and access its source code. Once the code is extracted, it becomes vulnerable to exploitation, potentially compromising backend systems and exposing sensitive information. Code obfuscation is the process of intentionally obscuring the source code to make it difficult for hackers to read and understand. This practice renders the source code almost useless for attackers. It is crucial for developers to ensure that the level of obfuscation cannot be easily reversed by deobfuscation tools.

Third-party Libraries Management

Third-party software libraries are often used by developers to reduce development costs and accelerate time-to-market. However, these open-source libraries can pose significant security risks. The code authored externally may contain bugs and vulnerabilities, creating potential attack vectors. Proper management of third-party libraries is essential to maintain software security. Developers should maintain a comprehensive inventory of third-party software components, track updates, and manage dependencies. Additionally, there are various tools available to help developers assess the security risks posed by open-source libraries and frameworks.

Automated Security Testing

A comprehensive security strategy is incomplete without robust mobile security testing. End-to-end testing helps identify potential risks and vulnerabilities before they compromise user privacy and security. Alongside penetration testing and vulnerability assessment, engineers can perform static and dynamic code analysis, data encryption testing, malware analysis, and more. Automating these security testing activities significantly improves efficiency and increases test coverage, resulting in the delivery of secure mobile apps in a timely manner.


In the highly competitive world of mobile applications, companies often strive to deliver feature-rich apps but may overlook the importance of security. However, mobile app security can never be an afterthought. To ensure top-notch quality, a well-rounded security approach is required. This approach should include implementing multi-factor authentication, securing data storage, utilizing code obfuscation, managing third-party libraries, and conducting automated security testing.

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Summary: Mobile App Security

From mainframes to smartwatches, we have developed applications for every computing platform. The total number of mobile applications alone has reached a whopping 8.93 million[^1^]. However, mobile app security is lagging far behind. To improve overall mobile app security and prevent breaches, follow these five steps: 1. Implement multi-factor authentication. 2. Secure data storage. 3. Utilize code obfuscation. 4. Manage third-party libraries. 5. Conduct automated security testing.

[^1^]: Source: Forbes
[^2^]: Source: PT Security
[^3^]: Source: Lookout
[^4^]: Source: OWASP Mobile Top 10

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