Top 5 Fintech Cyber Security Risks and Best Practices

Fintech companies have been transforming financial services with significant improvements in efficiency and accessibility. Just like every new trend, fintech should make users believe that it offers a secure alternative to traditional financial services. However, the top fintech cybersecurity risks emerge has critical challenges in the roadmap for fintech adoption. As fintech platforms become staple choices for modern customers, the emphasis on fintech cybersecurity has become stronger.

Innovation in the domain of fintech has led to the arrival of new solutions, such as mobile banking and digital payments, which have redefined user experiences. At the same time, fintech apps hold sensitive information, including transaction details and personal financial records of customers, which makes them the prime targets for criminals. Awareness of fintech cybersecurity risks and best practices can empower fintech businesses to protect their customer data and enjoy business continuity.

Why is Security a Major Concern in Fintech?

The fintech industry offers a bigger attack surface for malicious agents as it deals with new approaches to financial transactions. Fintech apps are the easiest target to access sensitive customer data, which includes transaction details and banking credentials. On top of it, the rapid adoption of emerging technologies like AI creates new vectors for exploitation. Deloitte has predicted that generative AI will be responsible for fraud losses amounting to $40 billion in the US alone, by 2027 (Source). 

You can understand why security should be the foremost priority in fintech by taking a look at how fintech has improved financial services. Customers can make cardless payments with minimalist mobile interfaces and rely on smart contracts on blockchain for instant cross-border payments. The rise of cybersecurity challenges in fintech can also be attributed to the growth in ecommerce and mobile transactions. Statista forecasts suggest that losses due to payment card fraud may increase by more than $10 billion between 2022 and 2028 (Source).

The impact of cybersecurity breaches on fintech firms is not limited to downtime and financial losses. Finastra, one of the leading firms, was the victim of a major data breach in 2024, in which attackers stole internal documents and client files. Therefore, fintech cybersecurity breaches also raise concerns regarding data security and client confidentiality in financial services. Most important of all, fintech firms have to face legal consequences and loss of brand reputation due to security breaches. 

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Unraveling the Top 5 Fintech Cybersecurity Risks

The consequences of security breaches in fintech showcase how important it is to learn about the most notable cybersecurity risks in fintech. Your search for answers to “What are the risks of fintech cybersecurity?” will lead you to multiple security challenges in fintech. At the same time, you may wonder about the cybersecurity risks that pose the biggest challenges for growth of fintech. Industry experts recommend learning about the following prominent risks in fintech cybersecurity.

• Insecure APIs

Application Programming Interfaces are one of the most crucial components in fintech apps and insecure APIs can present huge security risks. APIs help in connecting fintech apps with banking systems, third-party services and other mobile applications. Fintech apps rely on APIs to enhance user functionalities and seamless integration with other platforms. However, the excessive dependence on APIs creates a bigger attack surface because APIs offer more endpoints for potential security risks. 

Breaches in even one API endpoint can result in major data breaches and exposure of financial data. Compromised API endpoints allow malicious actors to conduct unauthorized transactions and launch denial-of-service attacks. The common types of attacks on fintech APIs include injection attacks, man-in-the-middle attacks and excessive service requests.

The lack of input validation empowers attackers to implement injection attacks for extracting sensitive data and manipulating transactions. Discrepancies in rate limiting for APIs in fintech can provide an opportunity for hackers to overwhelm fintech apps with excessive service requests, thereby leading to denial of service. Insecure APIs also leave room for interception of API communication, which can lead to financial fraud or credential theft.

• Lack of Secure Data Storage

Fintech databases hold massive amounts of financial transaction details and sensitive user information. Most of the guides to fintech cybersecurity best practices focus on how fintech databases are primary targets of cybercriminals. Without robust security, fintech data is extremely vulnerable to theft or interception. The consequences of lack of security for databases in fintech apps can also lead to system downtime and financial fraud.

You should know that security of fintech databases holds so much weight because data is vulnerable during storage as well as transmission. Data interception during transfer can create new opportunities for financial fraud. The most notable attack vector for fintech databases draws attention towards SQL and NoSQL injection attacks. Injection attacks involve manipulation of database queries for extracting, modifying or deleting sensitive data.

The other attack vectors for poorly secured databases include privilege escalation and security misconfiguration. Attackers can exploit weak access controls to gain administrator privileges and take control of fintech apps. Inadequate database setting, such as lack of query permissions, also creates risks of exposing sensitive data to the public.

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• Weak Authentication and Authorization

The biggest threat to fintech cybersecurity comes from outdated authentication and authorization systems. Attackers can find a way through weak authentication systems to break into fintech systems, resulting in negative implications for users. The lack of robust authentication mechanisms presents one of the top fintech cybersecurity risks that lead to data breaches and financial fraud. The most common signs of weak authentication in fintech apps are improper token management, poor session controls and lack of multi-factor authentication.

Session hijacking is one of the best examples of what could happen in fintech apps with weak authentication. It empowers attackers to intercept session tokens and impersonate users, which allows them to take control of user accounts. Attackers can also use credential stuffing for data breaches to steal passwords and access user accounts. 

Another notable attack vector for fintech apps due to outdated authentication mechanisms points at brute force attacks. The primary goal of brute force attacks revolves around using automated scripts to find out login credentials. The lack of strong authentication mechanisms exposes fintech customers to a broader range of threats than other risks.

• Fintech Mobile App Security Flaws

Fintech mobile apps are also a common attack surface for many attack vectors as they have direct access to financial accounts of customers. Vulnerabilities in mobile apps can create risks of exposing private data and allowing attackers to take over user accounts. Insecure communication between fintech mobile apps and backend servers without the use of HTTPS leads to exposure of transit data. 

Many fintech mobile apps offer hardcoded secrets, which allow storage of API keys, encryption keys and database credentials in the mobile device. As a result, sensitive information is exposed to attackers, especially when the device is compromised. If developers push the source code to public repositories without encryption, the risk of exposing hardcoded secrets in fintech mobile apps increases.

Attackers can also use logic flaws in fintech mobile apps for reverse engineering and tampering. For instance, attackers can decompile the source code of apps to detect security vulnerabilities or extract API keys. Fintech app security flaws allow unauthorized access to critical systems, thereby creating possibilities of financial fraud and data breaches.

• Insider Threats

The list of most prominent cybersecurity challenges in fintech will be incomplete without mentioning insider threats. Employees or developers with access to sensitive data can also pose huge risks for fintech security. Anyone with legitimate access to sensitive credentials in fintech can create challenges for detecting and preventing malicious use of credentials.

Insiders with malicious intent can steal trade secrets, intellectual property or financial data of customers for personal gain. It is also important to note that insider threats don’t emerge only from malicious intent. Negligence for security practices is also one of the notable reasons for security breaches in fintech.

Employees who don’t follow the best practices for fintech security can create risks due to inappropriate handling of confidential data. For example, they can send sensitive files to the wrong recipient or store important credentials without encryption, thereby leading to breaches.

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Best Practices to Achieve Resilient Fintech Cybersecurity

The fintech industry must rely on a proactive approach for safeguarding customer data and preventing security breaches. Experts recommend the following best practices to keep fintech apps and systems safe from emerging threats.

• Always remember to deploy multi-factor authentication.
• Conduct regular penetration tests, security audits and software patches.
• Implement end-to-end data encryption for data at rest and in transit.
• Use secure API integrations and third-party services in fintech apps.
• Educate staff and users on the importance of fintech cybersecurity and challenges.

Final Thoughts 

The exponential growth in adoption of fintech solutions has created a new wave of transformation in the financial services sector. However, the top fintech cybersecurity risks create formidable challenges for the growth of fintech in the long run. Awareness of the most common security risks in fintech can help you understand the threat and prepare for mitigation strategies. Learn more about security best practices for fintech now.