Cleafy introduces Nyx to automate fraud investigations for banks

Cleafy has launched Nyx, a new autonomous fraud investigation platform designed for banks, as financial institutions face growing pressure to investigate fraud alerts at a pace that matches increasingly sophisticated attack campaigns.

The London announcement marks Cleafy’s move into automated fraud investigation, with the company positioning Nyx as a platform that uses AI agents to investigate fraud signals, reconstruct attack campaigns, generate forensic reports, and produce detection and response rules within minutes.

According to Cleafy, the core challenge for many banks is no longer identifying suspicious activity, but investigating it quickly enough to contain losses and prevent broader attack progression. Manual investigation workflows, which can take several hours per case, are increasingly difficult to sustain as fraud volumes rise and attack methods become more coordinated.

Nyx is designed to address that bottleneck by automating the full investigation process. Cleafy says the platform can complete fraud investigations in under four minutes, compared with more than four hours for manual reviews. It also aims to help institutions investigate all fraud signals with consistent forensic depth, rather than limiting detailed reviews to a subset of cases due to operational constraints.

The company said the platform can identify coordinated fraud patterns before fraudulent transactions are executed and can automatically generate optimised detection and response rules based on reconstructed attack activity. It also reviews and rationalises existing rulesets to remove duplication, resolve conflicts and strengthen coverage.

Rather than replacing analysts, the system is designed to shift their role towards oversight and supervision. Human investigators review findings, while feedback from analysts and evidence from live cases are used to refine the platform’s AI models over time. Cleafy added that investigation reports are generated in the analyst’s working language, allowing local teams to review findings without an additional translation step.

Nyx has been built for regulated banking environments, with Cleafy highlighting full logging and traceability as relevant for compliance frameworks such as DORA and NIS2. The company said the platform is already in use at three European banks serving more than 30 million digital banking customers.

The launch reflects a broader trend in financial crime prevention, where banks are looking beyond detection tools and focusing more closely on the operational speed of investigation and response.

About the Company

Cleafy is a fraud management platform for banks, serving more than 173 financial institutions. Founded in Milan, the company also has offices in Madrid and London. Its platform covers fraud prediction, real-time detection and response, autonomous investigation, workforce protection and threat intelligence.

Why This Matters to FinanceX Readers

For banks, fraud vendors and investors watching the regtech and cybersecurity space, this launch points to the next stage in fraud operations: automation at the investigation layer rather than detection alone. It also reflects how AI is increasingly being deployed not only to identify threats, but to reduce operational friction, improve response times and strengthen resilience in regulated financial environments.