The advent of fintech apps has revolutionized the financial sector, offering unprecedented convenience and efficiency. However, with this digital transformation comes a new set of challenges. Cybercriminals are becoming more sophisticated, exploiting vulnerabilities in these apps to gain unauthorized access to data.
In this post, we provide a detailed explanation of the importance of Fintech app security and the role it plays in safeguarding financial institutions from data breaches. In addition, we will delve into the various security measures that can be implemented and how they can help businesses protect their digital assets, ensuring the trust and confidence of their customers. Let’s scroll down to explore now.
Key takeaways
- There are 10 common fintech app security threats, which include data breaches, malware attacks, phishing attacks, (MitM) attacks, insider threats, API vulnerabilities, third-party risks, compliance failure, legacy systems, and a lack of security awareness.
- The best solutions for fintech app security threats are data encryption, patch management, multi-factor authentication, email security measures, HTTPS encryption, least privilege, API security gateways, vendor risk assessments, implementing CMS and regular communication.
- The emerging technologies and trends in Fintech App Security for 2025-2026 include AI-driven security solutions, biometric verification, automated Secure Development Lifecycle (SDLC), API security, and cloud-based security services.
Why is Fintech app security so important?
As the Fintech industry continues to evolve, the importance of security in fostering a resilient and secure financial app cannot be overstated. Below are 8 reasons why Fintech app security is so important.
- Safeguarding sensitive data: Fintech apps handle a wide range of sensitive information, ranging from financial transactions to personal details. Security measures are essential to protect this data from unauthorized access and potential misuse.
- Ensuring secure data sharing: Fintech apps often need to share data both internally and externally. Security ensures that this data sharing is done securely, mitigating the risk of unauthorized access.
- Secure management of digital identities: Digital identities are a cornerstone of online transactions. Security measures help preserve the integrity of these identities, preventing identity theft and unauthorized access.
- Preventing cross-platform malware infections: Fintech apps operate across various platforms, increasing the risk of malware infections. Security measures help prevent the spread of malware, averting potential breaches.
- Mitigating cloud-based security risks: Many fintech apps rely on cloud-based infrastructure, which can have its own set of vulnerabilities. Security helps address these vulnerabilities, fortifying the apps against cyber threats.
- Compliance adherence: Fintech apps are subject to stringent regulatory compliance to ensure legal adherence and data protection. Security plays a crucial role in meeting these requirements.
- Economic implications of breaches: Security breaches can have exorbitant costs, including financial losses and reputational damage. By prioritizing security, fintech apps can mitigate these risks.
- Earning and maintaining customer trust: Trust is a key factor in the success of fintech apps. By demonstrating an unwavering commitment to security, fintech apps can build and preserve customer trust. This trust, in turn, can lead to increased customer loyalty and business growth.
After finding out about the importance of fintech app security issues, in the section below, we will discuss in detail the 10 most common fintech app security threats, along with real-life examples and statistics for each security threat.
10 Common fintech app security threats
After understanding the significance of FinTech app security, we must have a deeper understanding of the threats to FinTech app security to ensure safety and protection for data in the application. Below are some of the common Fintech app security threats:
1. Data breaches
This is indeed the most common threat. Attackers can exploit vulnerabilities in the app’s security to gain unauthorized access to sensitive financial data such as account numbers, passwords, and transaction history. The consequences of data breaches can be severe, leading to identity theft, financial loss, and reputational damage for both the users and the financial institution.
Realistic example:
- Revolut Breach in 2023: According to techcrunch.com, Hackers accessed personal data of over 50 million users, including names, addresses, and phone numbers. Revolut attributed the breach to a vulnerability in an API call.
2. Malware attacks
Malware, or malicious software, can be installed on a user’s device through various means, such as phishing attacks, visiting infected websites, or falling victim to social engineering tactics. Once installed, malware can steal sensitive data, disrupt operations, or even take control of the device, causing significant harm.
Realistic example:
- Emotet Malware Surge in 2023: According to techcrunch.com, Emotet malware targeted financial institutions and individuals, leading to millions in losses. The malware infiltrated systems through phishing emails and exploited vulnerabilities in financial software.
3. Phishing attacks
Phishing attacks are deceptive attempts to trick users into revealing sensitive information such as login credentials or credit card numbers. These attacks often use deceptive emails, text messages, or even fake websites that appear to be legitimate. Users need to be vigilant and verify the authenticity of the communication to avoid falling victim to these attacks.
Realistic example:
- According to aag-it.com, Phishing, identified as the most common cyber crime, affected 83% of UK businesses in 2022, with 323,972 global victims in 2021. Despite Google’s 99.9% block rate, $44.2 million was stolen, averaging $136 per attack. Phishing, mainly through email, exploits the sale of leaked databases on the dark web, with 16.5 leaked emails per 100 internet users in 2021.
4. Man-in-the-Middle (MitM) attacks
Man-in-the-Middle (MitM) attacks are a significant threat to fintech app security. These attacks occur when a perpetrator intercepts a conversation between a user and an application, potentially leading to the theft of personal information such as login credentials, account details, and credit card numbers.
MitM attacks account for 35% of Wi-Fi exploitation activity, making them particularly relevant for mobile fintech apps. Popular industries for MitM attacks include banks and financial companies. Common types of MitM attacks include email hijacking and Wi-Fi eavesdropping, where cyber criminals control email accounts or set up malicious Wi-Fi networks, respectively.
Realistic example:
- MitM attack at coffee shop: According to varonis.com, cybercriminals set up a fake Wi-Fi network at a coffee shop in London In 2020. When customers connected to the network, their financial data was intercepted and stolen.
5. Insider threats
Insider threats are security threats that originate from within an organization. These threats can be intentional, such as an employee stealing data, or unintentional, such as an employee accidentally exposing sensitive information. Regular audits, access controls, and employee training can help mitigate these threats.
Realistic example:
- According to LinkedIn, Wells Fargo insider threat: In 2016, a Wells Fargo employee stole the personal information of over 600,000 customers and sold it to identity thieves.
6. API vulnerabilities
APIs (Application Programming Interfaces) are the interfaces that allow different applications to communicate with each other. Vulnerabilities in APIs can be exploited by attackers to gain unauthorized access to data or systems. Regular security audits and robust API security practices are essential to preventing these attacks.
Realistic example:
- In 2018, a vulnerability in an API used by Marriott Hotels was exploited by hackers to steal the personal information of millions of guests.
7. Third-party risks
Fintech apps often rely on third-party services such as cloud providers and payment processors. The security of these third-party services can pose a risk to the fintech app itself. It’s important for fintech app companies to thoroughly vet their third-party providers and ensure they follow stringent security practices.
Realistic example:
- According to techcrunch.com, Capital One suffered a data breach that exposed the personal information of over 100 million customers in 2019. The breach was traced back to a vulnerability in a cloud storage service used by Capital One.
8. Compliance failure
Fintech apps are subject to a variety of regulations, such as the Payment Card Industry Data Security Standard (PCI DSS) and the General Data Protection Regulation (GDPR). Failure to comply with these regulations can result in hefty fines, reputational damage, and even criminal charges. Regular audits and a strong compliance program can help avoid these issues.
Realistic example:
- According to wired.co.uk, British Airways was fined £183 million by the UK Information Commissioner’s Office for a data breach that exposed the personal information of over 500,000 customers in 2019. The airline failed to comply with data protection regulations.
9. Legacy systems
Many fintech apps are built on top of legacy systems that were not designed with modern security considerations in mind. These legacy systems can be vulnerable to attack, making it difficult to implement new security measures. Upgrading these systems and incorporating modern security practices is crucial.
Realistic example:
- According to Wikipedia, WannaCry, a ransomware attack, targeted hospitals and other organizations around the world in 2017. The attack exploited a vulnerability in older versions of the Windows operating system.
10. Lack of security awareness
One of the biggest challenges in fintech security is a lack of awareness among users and employees. Users need to be aware of the risks of phishing attacks, malware, and other threats. Employees need to be trained in how to handle sensitive data securely, and participating in regular training and awareness programs can help address this issue.
Realistic example:
- According calyptix.com, a phishing attack targeted employees of the Democratic National Committee in 2016. The attackers sent emails that appeared to be from Google Docs, asking employees to click on a link. When employees clicked on the link, their email accounts were compromised.
15+ Solutions to all the fintech app security challenges
Now that we have understood the fintech app security threats, it is vital to explore the methods to mitigate them effectively. The following table presents solutions to various security problems mentioned in the previous section. It provides the advantages, disadvantages, and considerations for implementation of each solution.
Fintech app security threat: solution comparison table
| Threat | Solutions | Advantages | Disadvantages | Considerations |
|---|---|---|---|---|
| Data Breaches | – Data Encryption (AES, RSA) | – Protects data at rest and in transit – Complies with data privacy regulations | – Performance overhead – Key management complexity | Choose strong encryption algorithms, secure key storage |
| – Access Control (RBAC, ABAC) | – Granular control over data access – Prevents unauthorized access | – Implementation complexity – User management overhead | Define clear access roles and permissions, regularly review access grants | |
| – Regular Security Audits (Pen testing, Vulnerability scanning) | – Identifies and prioritizes vulnerabilities – Proactive approach to risk mitigation | – Can be disruptive to operations – Requires skilled security professionals | Choose reputable security auditors, plan for remediation efforts | |
| Malware Attacks | – Anti-Malware Software (Endpoint protection, EDR) | – Detects and blocks malware in real-time – Continuously monitors for suspicious activity | – Can be resource-intensive – False positives can disrupt operations | Choose reputable vendors, regularly update software and definitions |
| – Patch Management | – Applies security updates to software – Closes vulnerabilities exploited by malware | – Requires timely deployment – Can disrupt systems with critical applications | Automate patch deployment, test patches before rollout | |
| – User Education (Phishing awareness training) | – Empowers users to identify and avoid phishing attacks – Reduces susceptibility to social engineering | – Requires ongoing training – May not be effective for all users | Implement interactive training programs, simulate phishing attacks | |
| Phishing Attacks | – Multi-Factor Authentication (MFA) | – Adds an extra layer of security beyond passwords – Makes it harder for attackers to compromise accounts | – User inconvenience – Additional complexity for login process | Choose user-friendly MFA methods, provide support for users |
| – Email Security Measures (DMARC, SPF) | – Blocks fraudulent emails at the domain level – Prevents impersonation attempts | – Requires configuration changes with email providers – May not block all sophisticated phishing attacks | Collaborate with IT and email providers, monitor email logs for suspicious activity | |
| – Domain Monitoring | – Detects unauthorized use of your domain name – Prevents phishing websites impersonating your brand | – Requires ongoing monitoring – May not prevent all domain spoofing attempts | Choose a reliable domain monitoring service, consider domain name locking | |
| Man-in-the-Middle (MitM) Attacks | – HTTPS Encryption (TLS/SSL) | – Secures communication channels with end-to-end encryption – Prevents data interception during transmission | – Performance overhead – Requires certificate management | Implement strong ciphers and certificate validation, use trusted certificate authorities |
| – VPNs (Secure remote access) | – Encrypts traffic between remote devices and your network – Secures connections through untrusted networks | – Performance overhead – Increased complexity for network management | Choose secure VPN protocols, educate users on proper VPN usage | |
| – Certificate Validation | – Verifies the authenticity of server certificates – Ensures communication with the intended server | – Requires user vigilance – Can be bypassed by sophisticated attackers | Educate users to check certificate validity and warnings, implement strict certificate validation tools | |
| Insider Threats | – Background Checks | – Identifies potential security risks before hiring – Reduces the risk of malicious insiders | – Privacy concerns – May not detect all potential threats | Conduct thorough background checks, focus on relevant security-related information |
| – Least Privilege | – Grants users access to only the data they need for their job – Limits the impact of insider breaches | – Increased administrative overhead – May require workflow adjustments | Define clear roles and permissions, regularly review access grants | |
| – Data Loss Prevention (DLP) | – Monitors and restricts data exfiltration – Prevents unauthorized data transfers | – False positives can disrupt operations – Requires careful configuration to avoid data loss | Define sensitive data classifications, implement granular DLP policies | |
| API Vulnerabilities | – API Security Gateways | – Controls access to APIs and protects against unauthorized requests – Provides centralized security for API endpoints | – Increased complexity – Additional cost for implementation | Choose scalable and robust API gateways, integrate with existing systems |
| – Regular API Penetration Testing | – Identifies vulnerabilities in your APIs – Proactive approach to securing API endpoints | – Can be disruptive to development – Requires security expertise | Conduct penetration testing on a regular basis, prioritize and patch vulnerabilities | |
| – API Documentation | – Provides clear and secure API documentation – Ensures proper use and prevents misuse | – Requires ongoing maintenance – Can be complex for large APIs | Implement clear and concise API documentation, use secure design principles | |
| Third-Party Risks | – Vendor Risk Assessments | – Evaluates the security practices of third-party vendors – Mitigates risks associated with outsourced services | – Time-consuming process – Requires vendor cooperation | Develop a risk assessment framework, ask vendors about their security controls |
| Compliance Failure | Implement a Compliance Management System (CMS) | – Proactive compliance minimizes the likelihood of facing penalties, reputational damage, and operational disruptions | – Non-compliance can lead to contract cancellations, lost partnerships, and ultimately, reduced revenue. | Implementing a robust CMS requires resources, including personnel, technology, and budget allocation. |
| Legacy Systems | Develop a secure and efficient data migration | Legacy systems have a proven track record of stability and functionality, minimizing operational disruptions. | Lack of modern security features exposes legacy systems to evolving cyber threats and data breaches. | Data Security and Privacy: Ensure any chosen solution prioritizes data security and adheres to relevant regulations. |
| Lack of Security Awareness | Regular Communication | Demonstrating a commitment to security builds trust with customers and partners, enhancing brand image. | Quantifying the impact of awareness programs can be challenging, requiring well-defined metrics and regular assessments. | Use security awareness platforms and gamified solutions to enhance engagement and retention. |
The comparison table of threats in fintech app security is complete. With this comparison table, you can easily approach the information for each threat, along with its solutions, considerations, pros, and cons, efficiently. In the next part, learn more about some case studies for Fintech app security, including popular Fintech companies like Stripe, Klarna, and Revolut.
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3 Best case studies for fintech app security
In addition to discovering Fintech app security solutions to all the challenges above, you can learn about the three case studies for Fintech app security that apply to your business in the section below.
1. Stripe: Building security from the ground up
Stripe has revolutionized online payments by providing a comprehensive range of APIs that streamline the integration of payment gateways for businesses. Stripe’s unwavering commitment to security is evident through their implementation of advanced measures such as tokenization and SSL encryption. These measures ensure the protection of transaction data, establishing Stripe as a reputable and reliable player in the fintech industry. However, Stripe still faces challenges like building security from the ground up, and here are its solutions and impacts.
Challenge: The task was to launch a new payment platform that meets high security standards and can scale as needed.
Solution
- Secure architecture
- Security by default
- DevOps collaboration
- Comprehensive documentation and training
Impact
- Established Stripe as a leader in secure payment processing: The successful implementation of these security measures helped establish Stripe as a leader in secure payment processing and attract major corporations and users to the platform.
- Minimal security incidents and vulnerabilities: The proactive design of the platform’s security resulted in minimal security incidents and vulnerabilities.
- Fostered a culture of security across the organization: The emphasis on security in the development and operation of the platform fostered a culture of security within the organization. This influenced development practices and ensured that security remained a priority in all operations.
2. Revolut: Rebuilding trust after a breach
Revolut is an international neobank and fintech firm that specializes in providing banking services. The company offers a range of convenient features through its mobile app, including currency exchange, peer-to-peer payments, and bank transfers.
Revolut’s primary objective is to streamline financial transactions and make managing money effortless. In addition to its core services, the company also offers various other benefits, such as multi-currency accounts, debit cards, virtual cards, Apple Pay integration, interest-bearing “vaults,” stock trading, cryptocurrency services, commodities, and more. Because the company offers so many services, security is crucial. Specifically, here are the challenges that Revolut must face:
Challenge: In 2023, a data breach occurred that not only exposed security vulnerabilities but also eroded the trust of users in the platform.
Solution
- Enhanced data encryption
- Granular access control
- Continuous monitoring and threat analysis
- Transparency and communication
Impact
- Regained user trust and demonstrated commitment to security improvement: By taking these steps, the platform was able to regain user trust and demonstrate their commitment to improving security.
- Increased security maturity and reduced future attack risk: These measures increased the platform’s security maturity, reducing the risk of future attacks.
- Positive media coverage and industry recognition for handling the breach responsibly: The platform’s responsible handling of the breach led to positive media coverage and recognition within the industry.
3. Klarna: Embracing secure development
Klarna is a leading fintech company known for its innovative solutions in the financial technology sector. It offers a range of services, including payments for online storefronts and direct payments, among others. Klarna has made a significant impact in transforming the way consumers and businesses transact with each other, making it a key player in the fintech industry. However, with the expansion of its user base and features, Klarna faced the challenge of ensuring continuous security. Below is a detailed analysis of the solutions and impact of these challenges.
Challenge: Klarna, experiencing rapid growth, faced the challenge of ensuring continuous security while scaling both its user base and features.
Solution
- Integrated security into the SDLC
- Automated security testing
- Focus on secure libraries and frameworks
- Security Champions Program
Impact
- Minimal security incidents despite significant growth: Despite Klarna’s significant growth, the number of security incidents remained minimal. This is a testament to the effectiveness of the security measures implemented.
- Strong internal security culture, boosting overall cybersecurity posture: The measures taken by Klarna fostered a strong internal security culture. This boosted the company’s overall cybersecurity posture, making it more resilient against potential security threats.
- Enhanced user trust and brand reputation due to proactive security measures: Klarna’s proactive approach to security enhanced user trust and improved the company’s brand reputation. Users are more likely to trust and use a platform that prioritizes security.
5 Emerging technologies and trends of fintech app security
To guarantee the utmost security of fintech applications, it is crucial to understand the prevailing trends. The following are the 5 foremost emerging technologies and trends in fintech app security for the period of 2024–2025:
1. AI-Driven security solutions
The landscape of threat detection and prevention is being transformed by machine learning and AI. Tools for automated anomaly detection, risk evaluation, and fraud forecasting are becoming indispensable in the fight against increasingly complex cyberattacks. These tools surpass traditional signature-based detection methods and can adjust to changing threats in real-time.
2. Biometric verification
Robust authentication is crucial for the protection of accounts and data. Biometric methods such as fingerprint, facial, and voice recognition provide a more secure and user-friendly alternative to passwords. When combined with AI, these methods can significantly decrease the vulnerabilities associated with weak or compromised passwords by improving accuracy and preventing spoofing.
3. Automated secure development lifecycle (SDLC)
The integration of security tools into CI/CD pipelines allows for early identification and remediation of vulnerabilities during the development process. Automated security testing, code analysis, and penetration testing become integral parts of the development workflow, reducing the likelihood of insecure code making it to production.
4. Emphasis on aAPI security
APIs form the foundation of contemporary fintech apps, but they also introduce new avenues for attacks. Strong API security frameworks, access control mechanisms, and threat monitoring solutions are essential for preventing API breaches and unauthorized access to sensitive information.
5. Cloud-Based security services
Transitioning security infrastructure to the cloud provides scalability, flexibility, and access to advanced security tools like SIEM and threat intelligence platforms. This enables fintech companies to harness powerful security features without substantial initial investment or resource management.
These 5 trends signify considerable changes in the fintech app security landscape and hold great promise for enhancing security posture and user trust. Although there are still other trends that need to be considered, these five have the most immediate and significant implications for fintech app security in the coming year.
Conclusion
To sum up, fintech applications heavily rely on security as they face a growing risk of criminal activity. Hence, it is crucial to incorporate security measures at every stage, starting from partner selection to product development and testing. These measures should not only comply with existing regulations but also possess the flexibility to counter emerging threats. By taking into account the solutions, considerations, pros and cons of the common threats in Fintech app security mentioned above, fintech companies can effectively safeguard their applications and prevent potential risks.
