Telecom Bank Card Fraud Analysis Based on Statistical Measures

In recent years, telecommunication network fraud has become increasingly severe, posing significant threats to financial security and social stability. This study aims to investigate the correlation between fraud occurrence and key indicators, including bank card usage and PIN authentication, to identify risk factors and protective measures. Statistical analyses were conducted on a comprehensive dataset of reported fraud cases, incorporating Kolmogorov Smirnov (K S) tests to examine the distribution characteristics of (Fraud), (Card), and (PIN) variables, followed by Spearman correlation analysis to assess their interdependencies. Visualization through pie charts revealed the proportional distribution of fraud types, with particular emphasis on differentiating telecom related bank card fraud from non-telecom cases. The results indicate that bank card transactions conducted via digital devices exhibit a higher susceptibility to fraudulent activities, whereas the implementation of PIN verification significantly mitigates fraud risk. These findings provide empirical insights for enhancing anti-fraud strategies, emphasizing the importance of secure authentication mechanisms in digital financial transactions.