Secure Your UPI Application Against Modern Threats
Protect UPI applications against runtime attacks, and evolving fraud techniques.
UPI applications operate in a high-risk environment where the mobile application, authentication mechanisms, device, transaction workflows, and backend systems work together to process sensitive financial activity. Weaknesses in any of these layers can create opportunities for account takeover, transaction manipulation, or abuse of legitimate payment functionality.
Bugsmirror MASST helps UPI applications strengthen SIM and device binding, detect threats such as SMS spoofing and runtime manipulation, and protect transactions, customer trust, sensitive data, and application integrity.
UPI’s Scale Creates a Massive Attack Surface
With 700+ banks live on UPI and 55.49 crore users, UPI is one of the most widely adopted digital payment ecosystems. With millions of users depending on mobile applications for everyday transactions, even a single security weakness can create significant risk.
Bugsmirror MASST helps UPI applications build a layered security posture that protects application integrity, strengthens secure transaction workflows, and detects threats targeting the device and runtime environment.
Key Security Challenges for UPI Applications
Protecting Payment Applications in a Hostile Mobile Environment
Compliance and Regulatory Requirements
UPI applications must continuously align with evolving regulatory and security requirements while protecting sensitive customer and financial information. Meeting these requirements requires security controls across app testing, data protection, runtime security, fraud prevention, and monitoring.
Recommended controls: Continuous security assessments, vulnerability management, application protection, runtime monitoring, audit-ready reporting, and security controls aligned with applicable RBI, SEBI CSCRF, NPCI and OWASP MASVS requirements.
Device-Binding Fraud
Device binding creates an important security relationship between the customer, application, and device environment. That relationship must be protected against application manipulation, device compromise, and unauthorized changes.
Recommended controls: Device integrity, secure binding mechanisms, server-side validation of RASP controls, runtime risk signals, red teaming assessments, and transaction-level checks.
Rooted & Compromised Devices
A UPI application executing on a compromised device cannot rely entirely on the operating system to enforce security boundaries. Attackers may gain capabilities that allow them to inspect processes, manipulate application behavior, or interfere with security controls.
Recommended controls: Device integrity checks, root/jailbreak detection, environment assessment, attestation and runtime risk evaluation.
SMS Spoofing & Manipulation
Spoofed, intercepted, or manipulated SMS messages can compromise OTPs, authentication flows, and transaction-related verification. UPI applications must maintain the integrity of SMS-based security signals throughout the transaction journey.
Recommended controls: SMS spoofing detection, SMS hooking detection, runtime threat detection, and server-side validation of RASP controls.
Reverse Engineering
Attackers can inspect application binaries to understand business logic, API interactions, embedded strings, security mechanisms, and internal application structures.
Recommended controls: Code encryption and hardening, string protection, application shielding, secure implementation practices and resilience mechanisms.
Hooking & Runtime Instrumentation
Dynamic instrumentation frameworks such as frida can allow attackers to intercept or modify function calls while the application is running. This can be particularly relevant when attackers attempt to bypass application controls or manipulate sensitive workflows.
Recommended controls: Anti-hooking, anti-debugging, instrumentation detection and runtime enforcement.
Application Tampering & Repackaging
A legitimate application can be modified, repackaged, resigned, and redistributed. Once modified, the application may be used to bypass security checks, expose sensitive logic, or alter application behavior.
Recommended controls: Application integrity validation, anti-tampering, repackaging detection, red teaming, code protection and runtime verification.
Malicious Applications & Overlays
Malware or malicious applications can interact with legitimate financial applications, observe user activity, manipulate interfaces, or interfere with sensitive operations.
Recommended controls: Runtime threat detection, overlay detection, application environment analysis and contextual security responses.
Accessibility Abuse
Malicious applications can misuse Android Accessibility Services to observe sensitive screens, automate interactions, or interfere with legitimate UPI workflows. This can expose authentication and transaction flows to unauthorized control.
Recommended controls: Accessibility detection, application risk assessment, runtime monitoring, and blocking of suspicious interactions.
Continuous Security for Mobile UPI Apps
Mobile App Compliance & Control
Strengthen UPI applications against applicable industry and regulatory security requirements, including NPCI guidelines, RBI digital payment security controls, OWASP MASVS, and SEBI CSCRF requirements where applicable. Establish security controls across the application lifecycle, maintain application integrity, and improve visibility into security posture and compliance readiness.
Total Protection
Secure the complete UPI application lifecycle from vulnerability discovery and security testing to code hardening, runtime protection, red teaming, server-side validation of RASP controls, hardware-backed attestation and continuous threat monitoring. Get security for all prominent runtime mobile app security threats in mobile UPI apps. Tailor security controls to your specific requirements while reducing engineering complexity. Consolidate cybersecurity, fraud into a unified approach, optimize security costs, and accelerate mobile UPI protection throughout the CI/CD pipeline.
Mobile App Threat Monitoring & Response
Detects suspicious runtime activity and emerging attacks as they occur inside the mobile application. Monitor attacks such as tampering, hooking, compromised devices, account takeover, device binding frauds and other frauds, enabling security teams to investigate and respond before they impact sensitive payment operations.
Account Takeover Can Hide Behind a Legitimate UPI Session
Attackers do not always need to break authentication to take over a UPI account. In one UPI security assessment, Bugsmirror uncovered how weaknesses across the application and device environment could be chained to compromise account trust and enable unauthorized access.
Your Complete Mobile Security Stack
Everything you need to secure your applications from development to runtime.
Compliance Across Industry Security Standards
Bugsmirror MASST helps you meet and exceed the expectations set by your industry’s regulatory authorities.
OWASP MASVS
RBI Digital Payment Controls
SEBI CSCRF GUIDELINES
NPCI Guidelines - UPI Framework
Mobile Payments on COTS (MPoC)
Build a Security Strategy for Your UPI Application
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