By Alejandro Correa Bahnsen, Data Scientist

Alejandro Correa Bahnsen is part of Easy Solutions’ Research organization. In this role, Alejandro spends his time on the application of data science to Easy Solutions’ products to ensure our company continues to offer the most advanced and effective fraud prevention solutions. Alejandro holds a Ph.D. in machine learning from Luxembourg University.

Isolation forests

Benefits of Anomaly Detection Using Isolation Forests

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One of the newest techniques to detect anomalies is called Isolation Forests. The algorithm is based on the fact that anomalies are data points that are few and different. As a result of these properties, anomalies are susceptible to a mechanism Read more

Phishing

The Technical Side of Phishing and How to Prevent It

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This post is part of our continuing series of exploring and integrating new probabilistic tools for fraud prevention.

Phishing, by definition, is the act of defrauding an online user and tricking them into clicking on a malicious link Read more

Fraud Data Scientist

Applying Data Science to Fraud Prevention

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Eighty thousand Kindle users. Sixty-five million Tumblr users. What do they have in common? Both groups had their login credentials breached, courtesy of hackers. While these attacks didn’t directly target financial Read more

Fraud Detection

Fraud Detection That Accounts for Misclassification Using Cost-Sensitive Logistic Regression

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This article is a continuation of a previous post entitled “Evaluating a Fraud Detection Using Cost-Sensitive Predictive Analytics.” Read more

phishing

Phishing Attack Analysis: Estimating Key Cluster Features and Why It’s Important

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A recent report showed how we can gain a better understanding of phishing attacksand attackers by using cluster analysis.Subsequently, in a recent post we showed how Read more

Phishing

Clustering of Phishing Attacks

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Easy Solutions data scientists, including the author of this article, will present extensive research on phishing patterns and correlations between attacks. Read more

Cost sensitive predictive analytics

Evaluating a Fraud Detection Using Cost-Sensitive Predictive Analytics

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A credit card fraud detection algorithm consists in identifying those transactions with a high probability of being fraudulent based on historical fraud patterns. Read more

Feature Engineering for Fraud Detection

Feature Engineering for Fraud Detection Models

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As cybercriminals are constantly updating their strategies to avoid being detected, traditional fraud detection tools, such as expert rules, are less effective as Read more

091415 DTA

Fraud Detection with Advanced Outlier Detection Algorithms

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Online fraud costs the global economy more than $400 billion, with more than 800 million personal records stolen in 2013 alone. Increasingly, fraud has diversified to different digital channels, Read more

data scientist

Hello! Let Me Introduce Myself

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As one of the newest employees at Easy Solutions, I’d like to take this opportunity to introduce myself. I am joining the Company as a Data Scientist. Before becoming part of Easy Solutions, I spent my time working at SIX Financial Services Read more