Mobile Application Security: Top 10 Threats & 6 Defensive Measures


What Is Mobile Application Security?

Mobile Application Security Article Image

Mobile application security involves protecting mobile apps from external threats such as malware and data leaks. It includes measures to safeguard both the app and the data it processes. With mobile devices being integral to daily life, ensuring their security is crucial. Apps need protection against risks like unauthorized access and data theft. Key components include encryption, secure coding, and regular updates to address emerging vulnerabilities.

Security in mobile applications is not just about software but also involves managing security at the hardware and network levels. It includes safeguarding user data privacy, securing network transactions, and preventing unauthorized app usage. Developers must consider various attack surfaces, including app vulnerabilities, device theft, and network breaches.

In this article:

Top 10 Mobile Application Security Threats

Mobile applications are exposed to a range of security threats that can compromise both user data and device integrity. According to the OWASP Mobile Top 10 list, the most prevalent threats include:

  1. Improper credential usage: This occurs when applications mishandle user credentials, such as storing passwords in plaintext or failing to implement secure password practices. This exposes sensitive user information to unauthorized access and heightens the risk of credential theft or unauthorized account access.
  2. Inadequate supply chain security: Mobile applications rely on numerous third-party libraries and components, each of which can introduce security vulnerabilities if not vetted properly. Inadequate supply chain security arises when developers integrate components without fully assessing their security posture, leaving applications open to threats embedded in these dependencies.
  3. Insecure authentication or authorization: These flaws allow attackers to impersonate users or gain unauthorized access to app functions. This often results from inadequate session management, weak password policies, or insufficient access controls.
  4. Insufficient input/output validation: This occurs when applications fail to properly validate and sanitize user input, leading to vulnerabilities like SQL injection and cross-site scripting (XSS). This enables attackers to manipulate the input fields and potentially access or alter sensitive information.
  5. Insecure communication: Insecure communication vulnerabilities occur when applications transmit data without encryption or through unprotected channels, making data susceptible to interception. This is especially risky on unsecured networks, where attackers can intercept data exchanges.
  6. Inadequate privacy controls: These expose sensitive user data due to poor data management or excessive data collection. Without sufficient controls, applications may unintentionally leak private information, violating user privacy and regulatory requirements.
  7. Insufficient binary protections: The lack of these protections makes it easier for attackers to reverse-engineer an application’s code, identify vulnerabilities, and create malicious modifications. Techniques like code obfuscation and anti-tampering mechanisms are essential to protect binaries from decompilation.
  8. Misconfigured security: Security issues can arise from default configurations, inadequate permissions, or exposure of sensitive data in development environments. Such misconfigurations are commonly exploited in attacks that target unprotected APIs, databases, or storage buckets.
  9. Insecure data storage: This leaves sensitive information vulnerable to theft or misuse if data is stored in plaintext or without adequate encryption. Mobile devices often store user credentials, session tokens, and other sensitive information locally, making secure storage essential.
  10. Insufficient cryptography: This involves using weak or outdated encryption algorithms that fail to adequately protect sensitive data. This makes encrypted data more susceptible to brute force or other cryptographic attacks.

Key Challenges in Mobile Application Security

Fragmented Platforms and Devices

Fragmented platforms and devices present significant challenges for mobile application security. The diversity of operating systems, device types, and hardware configurations creates a complex landscape for security implementation. This fragmentation results in inconsistencies in security updates and patches, making it difficult to effectively secure apps across all platforms.

Addressing this challenge requires developers to adopt cross-platform security measures and leverage tools that support multiple operating systems. Ensuring consistent, timely security updates and patch management across devices is crucial. Testing apps on various platforms and maintaining communication with stakeholders helps mitigate these issues.

Rapid Release Cycles

Rapid release cycles in mobile app development can compromise security. With frequent updates and new features, there is less time for security testing. This can lead to the introduction of vulnerabilities that may go unnoticed and unpatched.

To address this, it’s important to integrate security into the development process. Implementing automated security testing tools, incorporating security reviews in the development cycle, and fostering a culture of security awareness among developers can mitigate risks. Ensuring that security measures evolve alongside app updates can maintain security standards.

Lack of Standardization

The lack of standardization in mobile application security practices complicates effective protection. Different vendors and developers may use different security measures, leading to inconsistent security postures. This inconsistency can result in vulnerabilities if industry standards or best practices aren't uniformly applied across apps.

To overcome this, adopting standardized frameworks and guidelines is critical. Establishing security benchmarks, carefully vetting third party components, and encouraging adherence to industry best practices across the organization, can ensure consistency. Providing developers with clear security protocols and facilitating training programs helps align security strategies.

Mobile Application Security Testing

Mobile application security testing involves evaluating an app's defenses against potential threats and vulnerabilities. This testing process is critical in identifying weaknesses that could be exploited by attackers, ensuring the app's resilience before it is deployed to users. It typically includes a combination of manual and automated testing techniques, including:

Penetration testing, which simulates real-world attacks to uncover potential entry points. This hands-on approach helps assess how well the app withstands attempts to breach its security.

Static application security testing (SAST), which analyzes source code without executing it, identifying vulnerabilities such as insecure coding practices.

Dynamic application security testing (DAST), which evaluates the app while it’s running, exposing issues like improper session handling and insecure API usage.

Developers should also perform testing across different platforms and device configurations to address fragmentation challenges. By implementing continuous security testing throughout the development lifecycle, teams can catch and resolve security issues early, reducing the likelihood of costly breaches after deployment.

Six Ways to Improve Mobile Application Security

1. Implement Strong User Authentication

Strong user authentication is fundamental to mobile application security, protecting against unauthorized access. Utilizing multi-factor authentication, which combines passwords with biometric verification or OTPs, strengthens protection significantly. A robust approach involves enforcing password policies that require complexity and regular updates, reducing the chance of compromised credentials.

Integrating user authentication thoroughly involves encrypting both the storage and transmission of credentials. Developers should employ secure authentication protocols and systems that offer flexibility across devices.

2. Encrypt Sensitive Data

Encrypting sensitive data is an essential practice in mobile app security, protecting information from unauthorized access. Encryption ensures that even if data is intercepted, it remains unreadable without the proper decryption key. This applies to both data at rest and in transit, safeguarding personal information, financial details, and user credentials effectively.

To implement encryption, developers should use industry-standard encryption protocols and libraries, ensuring data protection consistency. Managing encryption keys securely is critical, involving secure storage and regular rotations. Encryption strength should match the sensitivity of the data.

3. Use Secure Communication Protocols

Using secure communication protocols is vital for protecting data exchanged between mobile applications and their servers. Protocols like TLS ensure that data transmitted over the network is encrypted and safeguarded against interception. This reduces the risk of man-in-the-middle attacks where attackers intercept and alter exchanged information.

Implementing secure communication requires verifying server identities, using secure token mechanisms, and regularly updating protocol versions to meet the latest standards. Developers should configure APIs securely, applying appropriate access controls and rate limiting. With protocols like HTTPS in place, apps can maintain secure connections, ensuring that user data remains confidential during transit.

4. Enforce the Principle of Least Privilege

Enforcing the least privilege principle minimizes security risks by granting users and applications only the access needed for their functions. This restriction reduces potential exploitation avenues, limiting the damage an attacker can inflict if access privileges are compromised. This principle applies to user accounts, APIs, and file permissions within mobile applications.

To implement this principle, developers should assess application architecture to define appropriate access levels, scrutinize permissions, and enforce separation of duties. Regularly reviewing access privileges and conducting audits ensures compliance with security policies. By maintaining strict access controls, apps reduce vulnerabilities and prevent unauthorized data access.

5. Regular Security Updates and Patching

Regular security updates and patching are crucial for protecting mobile applications against emerging threats. With the rapid evolution of vulnerabilities, timely updates ensure apps are protected against potential attacks. This involves routinely checking for security patches from libraries and frameworks used within the app and applying them promptly.

An effective update strategy requires systematic tracking of component versions and dependencies, automating patch deployments where possible. By adopting a proactive maintenance schedule and educating users about update importance, developers can sustain application security without compromising functionality.

6. Utilize Code Obfuscation and App Shielding

Utilizing code obfuscation and app shielding enhances mobile app security by making reverse engineering more difficult. Code obfuscation involves transforming source code into a less readable form without altering its functionality, thwarting attempts to decipher and exploit it. App shielding adds another layer of protection against tampering and intrusion attempts.

Implementing these measures requires integrating specialized tools during the build process that automatically obfuscate and protect code. These tools also help prevent debug or runtime analyses by attackers. Regularly updating obfuscation techniques in response to de-obfuscation advancements ensures the app remains protected.

Securing Mobile Applications with Radware

Radware offers a comprehensive suite of solutions to secure mobile applications:

Alteon Integrated WAF

Radware’s Alteon Integrated WAF ensures fast, reliable and secure delivery of mission-critical Web applications and APIs for corporate networks and in the cloud. Recommended by the NSS, certified by ICSA Labs, and PCI compliant, this WAF solution combines positive and negative security models to provide complete protection against web application attacks, access violations, attacks disguised behind CDNs, API manipulations, advanced HTTP attacks (such as slowloris and dynamic floods), brute force attacks on log-in pages and more.

Cloud Application Protection Services

Radware’s Cloud Application Protection Services provide a unified solution for comprehensive web application and API protection, bot management, client-side protection, and application-level DDoS protection. Leveraging Radware SecurePath™, an innovative API-based cloud architecture, it ensures consistent, top-grade security across any cloud environment with centralized visibility and management. This service protects digital assets and customer data across on-premise, virtual, private, public, and hybrid cloud environments, including Kubernetes. It addresses over 150 known attack vectors, including the OWASP Top 10 Web Application Security Risks, Top 10 API Security Vulnerabilities, and Top 21 Automated Threats to Web Applications. The solution employs a unique positive security model and machine-learning analysis to reduce exposure to zero-day attacks by 99%. Additionally, it distinguishes between “good” and “bad” bots, optimizing bot management policies to enhance user experience and ROI. Radware’s service also ensures reduced latency, no route changes, and no SSL certificate sharing, providing increased uptime and seamless protection as businesses grow and evolve.

Bot Manager

Radware Bot Manager is a multiple award-winning bot management solution designed to protect web applications, mobile apps, and APIs from the latest AI-powered automated threats. Utilizing advanced techniques such as Radware’s patented Intent-based Deep Behavior Analysis (IDBA), semi-supervised machine learning, device fingerprinting, collective bot intelligence, and user behavior modeling, it ensures precise bot detection with minimal false positives. Bot Manager provides AI-based real-time detection and protection against threats such as ATO (account takeover), DDoS, ad and payment fraud, and web scraping. With a range of mitigation options (like Crypto Challenge), Bot Manager ensures seamless website browsing for legitimate users without relying on CAPTCHAs while effectively thwarting bot attacks. Its AI-powered correlation engine automatically analyzes threat behavior, shares data throughout security modules and blocks bad source IPs, providing complete visibility into each attack. With a scalable infrastructure and a detailed dashboard, Radware Bot Manager delivers real-time insights into bot traffic, helping organizations safeguard sensitive data, maintain user trust, and prevent financial fraud.

Account Takeover (ATO) Protection

Radware Bot Manager protects against Account Takeover attacks, and offers robust protection against unauthorized access to user accounts across web portals, mobile applications, and APIs. Utilizing advanced techniques such as Intent-based Deep Behavior Analysis (IDBA), semi-supervised machine learning, device fingerprinting, and user behavior modeling, it ensures precise bot detection with minimal false positives. The solution provides comprehensive defense against brute force and credential stuffing attacks, and offers flexible bot management options including blocking, CAPTCHA challenges, and feeding fake data. With a scalable infrastructure and a detailed dashboard, Radware Bot Manager delivers real-time insights into bot traffic, helping organizations safeguard sensitive data, maintain user trust, and prevent financial fraud.

Kubernetes WAAP

Kubernetes WAAP (Web Application and API Protection) from Radware is specifically designed to secure microservices and containerized applications orchestrated by Kubernetes. It provides comprehensive protection by integrating web application security, API security, and bot management, all tailored for cloud-native environments. The solution features dynamic threat intelligence, automated policy enforcement, and real-time monitoring to defend against sophisticated threats like API abuse, application-layer DDoS attacks, and bot-driven exploits. It ensures consistent protection across distributed microservices while supporting DevOps workflows with seamless CI/CD integration. Radware Kubernetes WAAP is a next-generation solution that enhances both security and agility for Kubernetes-based deployments.

API Protection

Radware’s API Protection solution is designed to safeguard APIs from a wide range of cyber threats, including data theft, data manipulation, and account takeover attacks. This AI-driven solution automatically discovers all API endpoints, including rogue and shadow APIs, and learns their structure and business logic. It then generates tailored security policies to provide real-time detection and mitigation of API attacks. Key benefits include comprehensive coverage against OWASP API Top 10 risks, real-time embedded threat defense, and lower false positives, ensuring accurate protection without disrupting legitimate operations.

Client-Side Protection

Radware’s Client-Side Protection solution is designed to secure end users from attacks embedded in the application supply chain, such as Magecart, formjacking, and DOM XSS. It provides continuous visibility into third-party scripts and services running on the browser side of applications, ensuring real-time activity tracking and threat-level assessments. This solution complies with PCI-DSS 4.0 requirements, helping to protect sensitive customer data and maintain organizational reputation. Key features include blocking untrusted destinations and malicious scripts without disrupting legitimate JavaScript services, monitoring HTTP headers and payment pages for manipulation attempts, and providing end-to-end protection against supply chain exploits.

Web DDoS Protection

Radware’s Cloud Web DDoS Protection is engineered to counteract sophisticated Layer 7 (L7) DDoS attacks that evade traditional defenses by mimicking legitimate traffic. Utilizing proprietary behavioral-based algorithms, it detects and mitigates high-volume, encrypted attacks in real-time, generating precise signatures on the fly. This solution effectively handles Web DDoS Tsunami attacks, which use techniques like randomizing HTTP headers and cookies, and IP spoofing. It ensures comprehensive protection without disrupting legitimate traffic, minimizing false positives. Additionally, it integrates seamlessly with Radware’s broader Cloud Application Protection Services, offering a holistic defense against a wide range of web-based threats, including zero-day attacks.

Cloud DDoS Protection Service

Radware’s Cloud DDoS Protection Service offers advanced, multi-layered defense against Distributed Denial of Service (DDoS) attacks. It uses sophisticated behavioral algorithms to detect and mitigate threats at both the network (L3/4) and application (L7) layers. This service provides comprehensive protection for infrastructure, including on-premises data centers and public or private clouds. Key features include real-time detection and mitigation of volumetric floods, DNS DDoS attacks, and sophisticated application-layer attacks like HTTP/S floods. Additionally, Radware’s solution offers flexible deployment options, such as on-demand, always-on, or hybrid models, and includes a unified management system for detailed attack analysis and mitigation.

DNS DDoS Protection

Radware’s DNS DDoS Protection solution safeguards your DNS infrastructure from advanced DNS DDoS attacks. It uses behavioral-based detection and automatic real-time signatures to block attacks, ensuring that your DNS services remain available and your users can access your websites and applications without interruption.

Multi-Layered DDoS Protection

Multi-Layered DDoS Protection provides comprehensive security by constantly updating with new threats and real-life attack data from Radware’s Threat Intelligence Subscriptions. It offers multi-layered protection to maximize service availability and ensure a seamless user experience.

Threat Intelligence Service

Radware’s Threat Intelligence Service offers real-time, actionable insights derived from active Layer 3 to Layer 7 cyber-attacks observed in production environments. This service empowers security operation center (SOC) teams, threat researchers, and incident responders by providing enriched, contextual information that enhances threat detection and reduces mean time to response (MTTR). Key features include IP reputation alerts, seamless integration with existing security workflows via a REST API, and the ability to investigate suspicious IP addresses using large, diverse data sets. The service also integrates external data feeds and Open Source Intelligence (OSINT) to provide comprehensive threat visibility.

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