This research investigates how artificial intelligence (AI) might aid data security protocols in custodian banks. The paper evaluates custodian bankers' preparedness to adopt AI-based security solutions and the role that AI can play in securing data. To collect quantitative information from attitudes, difficulties, and readiness to integrate AI, sixty-two custodian bankers were asked to answer a structured survey. AI significantly increases the data security in risk management and fraud detection, and the majority of respondents (86.67%) agreed with this finding. It is proven that organizational readiness and financial limits have a large influence on the adoption of AI. Respondents reported being moderately to well prepared for AI, although the greatest obstacle to its deployment was budgetary restrictions. Using t-tests to test hypotheses, we were able to find that using AI actually helped data security with a mean score of 4.25 out of 5. In regression analysis, the impact of institutional readiness and budgetary limits on opinions concerning AI's ability to attract investments was identified. Cluster analysis identified three separate custodian bank groups that had different financial capabilities and preparedness. Overall, the results suggest that custodian banking needs particular tactics focused on overcoming financial obstacles and making organizations AI-ready to promote adoption of AI.