How to reduce internal fraud in financial institutions without increasing costs
Internal fraud continues to be one of the most silent but most costly risks for financial institutions in Latin America. Although much of the public conversation focuses on external fraud—especially digital fraud—recent reports indicate that a significant proportion of financial crimes involve internal employees or collaborators with privileged access to critical systems. This phenomenon is growing in parallel with the accelerated digitization of the sector, which increases the risk exposure surface.
In fact, according to recent data, the cost of fraud in Latin American financial institutions can reach up to 4.59 times the value of each lost transaction, a figure much higher than that of the retail sector. Furthermore, various investigations confirm that financial frauds in the region can amount to more than USD 400 million annually per country, including cases in which internal officials are directly involved. [forbescentroamerica.com] [semana.com]
In this context, preventing internal fraud without increasing operating costs is an urgent challenge. This blog explains how to achieve this and why tools like Sentinel are key for financial institutions to protect themselves effectively.
Internal fraud: a growing risk in Latin America
Although many banks have invested in solutions to mitigate external fraud, internal fraud continues to increase due to several factors:
Privileged access without adequate monitoring
Employees with access to critical systems represent a vulnerable point if the organization lacks continuous monitoring tools.
Greater Sophistication of Fraud Schemes
Digitalization has facilitated new forms of internal manipulation, such as: Altering transactions, manipulating records, creating fictitious accounts, and leaking critical information.
Collaboration between employees and external actors
Recent reports show that criminal organizations are recruiting bank employees or exploiting internal vulnerabilities to facilitate broader attacks, including those enabled by artificial intelligence and identity theft.
Key statistics on financial fraud in the region
Based on recent and reliable sources:
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More than 50% of Overall fraud losses in the region stem from digital channels, increasing the pressure on internal staff managing these channels. [innovacion…tal360.com]
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Scammers They stole over USD 1 trillion globally in 2024, a context that drives internal crimes as part of wider fraud networks. [forbescent…merica.com]
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Latin American financial entities These are the most affected in terms of cost per fraudulent transaction (4.59 times the lost value). [forbescentroamerica.com]
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In countries like Brazil, Mexico, and Colombia, domestic fraud is correlated with the increase in digital payments and instant transactions, which make traceability difficult without effective automated controls. [antilavado…dinero.net]
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Financial frauds in 2025 They could reach between $200 and $400 million annually per country, including cases involving internal employees. [semana.com]
Implicit trust in the official
Many institutions rely on human judgment without an autonomous system to verify suspicious behavior.
Lack of real-time monitoring
Internal fraud is often detected weeks later, after the loss has already occurred, or even in quarterly audits.
Isolated Systems
Internal processes are not always integrated. This creates gaps for: data manipulation, transaction modification, and unauthorized access.
How to reduce internal fraud without increasing costs
This is where entities can transform their operations with a smart, automated approach:
Unification and intelligent monitoring of internal users
Solutions like Sentinel allow you to:
• Monitor internal access
• Detect anomalous patterns
• Correlate alerts with operational behaviors
• Reduce false positives
This replaces manual processes or costly audits with continuous monitoring without increasing staff or infrastructure.
Real-time alert automation
Early detection is key.
Today, AI allows us to identify:
• Unusual movements
• Atypical accesses
• Unauthorized changes in parameters
• Activities that require immediate intervention
Entities can prevent losses without increasing operating expenses.
Silo reduction and complete user view
By integrating internal and external fraud into a single platform, Sentinel allows you to view the customer and the official as part of the same ecosystem.
This allows you to:
• Identify collusion.
• Track repetitive behavior.
• Cross-reference data with AML and anti-fraud rules.
Intelligent auditing without increasing operational load
With automated tools:
• Compliance teams can focus on truly critical cases.
• Hours of manual analysis are avoided.
• Costs associated with investigation and rework are reduced.
Why is Sentinel key to preventing internal fraud?
Advanced analytics + AI + continuous monitoring.
A single system for external and internal fraud
Sentinel offers a comprehensive view of the risk.
Reduction of operating costs
or allocate more budget to audits.
Adaptability to Latin American regulation
Conclusion
In a context where financial fraud can cost hundreds of millions of dollars annually and where internal fraud is increasingly connected to sophisticated criminal networks, financial institutions in Latin America need advanced yet accessible tools that allow them to protect themselves without increasing costs.
With its comprehensive and automated approach, Sentinel becomes an essential ally for preventing losses, protecting reputation, and strengthening internal security.
Request a Sentinel demo
If you’d like to purchase it, contact one of our sales representatives and receive personalized advice for your organization.
Camila Sibaja
México, República Dominicana.
Ariana Hütt
Centro América, Colombia, Brasil, España.
Natalia Rodriguez
Ecuador, Chile, Argentina, Uruguay.
Autor
Oscar Eduardo Camelo
Sentinel Marketing Director.
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