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Onur Ceran

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Open access Sep 2026

BREAKING AND SECURING TEXT-BASED CAPTCHAS: AN EMPIRICAL STUDY ON BANKS' ONLINE AUTHENTICATION SYSTEMS

Digital transformation has made online banking services essential, increasing the need for strong security to protect sensitive user data. To distinguish human users from automated bots, banks often use CAPTCHA systems. This study evaluates the security of text-based CAPTCHAs used by Turkish banks in their online authe...

Onur Ceran, Mehmet Batuhan Özdaş, Uğur Tekin · 0 citations
Open access Aug 2026

INTEGRATING CONTINUOUS AUDITING INTO SOC OPERATIONS: AN AUDIT-DRIVEN THREAT MONITORING FRAMEWORK

A model that integrates real-time Security Operations Center log analytics with continuous auditing processes and aims to bridge the technical gap between operational threat monitoring activities and the internal audit function indicates that log-level visibility reduces blind spots in internal audit, strengthens contr...

Kübra Aslan, Azze Özel, Onur Ceran · 0 citations

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