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Innovative Technology in Detecting and Fighting Credit Card Fraud

While fraud in financial services isn’t new, the tools, tactics, and technologies shaping the future are rapidly evolving, creating a variety of challenges for credit card customers as soon as they open an account. Though the burden of some of these issues, such as unmanageable financial debt or ballooning interest rates and fees, remains solely in customers’ hands, financial institutions bear responsibility for other challenges, such as identity theft and other fraud.

With mobile banking, open data, and artificial intelligence (AI)-driven decisions redefining customer experiences, fraud risks have reached unprecedented levels. It is critical for financial organizations to strike a balance between innovation and protection, ensuring that digital trust remains paramount in customer relationships.

The new landscape of financial fraud

Modern fraud is a complex web of evolving threats that are adapting faster than many organizations can keep up with. Identity theft and synthetic identity fraud are two of the most common challenges, with profiles often blending real data with false details that can go undetected for weeks or months.

With account takeover attacks, fraudsters gain access to banking or credit card accounts, effectively locking the user out via stolen credentials. These credentials are often obtained via phishing or social engineering, where fraudsters manipulate people into sharing sensitive data under the pretense of being legitimate representatives of various institutions.

One of the fastest-growing frauds is card-not-present (CNP) fraud, where cybercriminals use stolen card details for unauthorized purchases without requiring a physical card. Physical skimmers and fraudulent point-of-sale systems are still in use, especially in international travel and small business locations like grocery stores and gas stations.

As generative AI advances, fraudsters use deep fake technology to mimic voices and images, making impersonation fraud far more convincing and harder to detect. Still, legitimate purchases also have fraud potential. They are sometimes falsely disputed, resulting in merchandise being refunded while the individuals retain the products, which is particularly problematic for e-commerce platforms.

Fraud detection and prevention

The speed and volume of financial transactions require fraud prevention systems that can proactively analyze transactions and make split-second decisions. Advanced tools, like AI and machine learning (ML), are critical for rapid fraud detection and prevention. Additionally, ML-based systems can analyze behavioral patterns and spending habits in real time, and anomaly detection algorithms flag suspicious purchases and can freeze the account or trigger an alert.

AI learns customer behavior over time and creates individual risk groups. Predictive models then assign a risk score to every transaction and decide whether to block, escalate, or approve it without human intervention, speeding up the process. These machine learning-based systems also behave proactively, asking customers to confirm activities that appear unusual. Chargebacks and disputes often require identity or purchase proof. Financial institutions now use image recognition and deep learning to quickly process and verify these documents at scale, improving fraud detection and user experience.

Organizational responsibilities

Effective fraud prevention is a structural situation and requires strategic collaboration across business groups.

  1. Credit card product teams. These teams build fraud prevention into the product lifecycle from inception.
  2. Cybersecurity and technology teams. Individuals tasked to deploy infrastructure that protects sensitive data and detects anomalies in real time are key to fraud detection.
  3. Data science and AI teams. These groups develop and train fraud detection models using real-world transactions, customer behavior, and fraud trends data, refining them continuously to keep up with new threats.
  4. Compliance, legal, and privacy teams. This group ensures regulatory compliance and privacy enforcement. Anti-money laundering and Know Your Customer (KYC) regulations help institutions verify identities and spot suspicious behavior.
  5. Customer support teams. These professionals are often the first line of defense in fraud detection and are vital in reporting suspicious behavior and managing disputes.

Investment in continuous learning, awareness, and upskilling for those tasked with fraud prevention is imperative for organizations. Much fraud prevention happens behind the scenes, yet customer awareness is a powerful tool. Guides and email campaigns help users recognize phishing scams, transparency about fraud risks assists customers with making informed choices, and instant push notifications alert consumers of suspicious activity. Even payment platforms like Zelle invest in consumer fraud education, ensuring users understand safe transaction practices.

Institutions need to educate customers regarding fraud, regulations, and their rights surrounding disputes. Data privacy is foundational to consumer trust. Customers desire the ability to opt out of third-party data sharing and know how their data is being used, stored, and protected. Under regulations like the California Consumer Privacy Act (CCPA), users have the right to request the deletion of their personal data, but organizations benefit when these processes are easy and secure. Compliance ensures that credit card information is encrypted, tokenized, and only accessible to authorized users.

Shaping the future

Maintaining digital trust is a strategic imperative, and several technologies facilitate efforts in this area. For example, behavioral biometrics—like typing speed, touchscreen pressure, and mouse movements—create unique user profiles that are harder to replicate than PINs or passwords.

Fraudsters use AI to mimic voices, but voice analysis to detect stress or deception is being experimented with to secure high-risk transactions, and facial recognition for logins is becoming more commonplace. Blockchain offers transparent, tamper-proof transaction histories that provide trails that are virtually impossible to alter. Open banking is more prevalent than ever, yet sharing financial data with third-party apps increases sensitive data exposure, so strict data-sharing controls are crucial.

Preventing fraud requires a robust blend of AI-driven tools, digital solutions, data privacy policies, and a deep commitment to customer trust and education. Financial institutions are burdened to adapt faster than fraudsters and adopt proactive security mindsets across their organization. Based on fraud reports from 2.6 million consumers, the Federal Trade Commission discovered that consumers lost over $12.5 billion in 2024, a 25 percent increase from 2023. The future of fraud prevention depends on collaboration, transparency, technology adoption, and innovation.

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About Author
Leena Kallakuri
Leena Kallakuri
Leena Kallakuri is a vice president of software engineering. During her 19-year career, she has led enterprise-scale quality transformations while launching several mission-critical platforms that demanded rapid development and exceptional reliability. Kallakuri leads software engineering organizations that use application programming interfaces (APIs), microservices, and cloud technologies to build next-generation banking solutions aligned with digital and mobile-first growth strategies.