Union Bank of Nigeria has attained certification under the Payment Card Industry Data Security Standard, PCI DSS version 4.0.1, the global standard for protecting payment card account data.
The certification, which took effect on August 11, 2026, confirms that the bank meets established technical and operational requirements for securely storing, processing and transmitting customers’ payment card information.
The certification covers key areas of the bank’s operations, including network infrastructure, card issuance, ATM and POS transaction acquiring and payment processing, reconciliation, settlement, chargeback, dispute resolution and retail banking.
Union Bank was assessed and certified in the Service Provider category.
The certification followed a year-long assessment process involving quarterly reviews and the participation of departmental, business and functional heads across the bank, with support from security firm Digital Encode.
The final independent audit was conducted by CyberCube, an accredited Qualified Security Assessor.
Speaking on the development, the Managing Director and Chief Executive Officer of Union Bank, Yetunde B. Oni, said the certification reaffirmed the bank’s commitment to protecting customer information and maintaining secure payment systems.
“The security of our customers’ information is central to everything we do at Union Bank. This certification reaffirms that our payment systems and processes meet a rigorous global standard, and it reflects the discipline of colleagues across the Bank who work every day to keep customer data safe,” she said.
The renewal ensures that Union Bank maintains continuous PCI DSS certification, in line with the Central Bank of Nigeria’s requirement that banks sustain compliance without any gap.

