According to the PCI Card Production and Provisioning Security Requirements, vendors are obligated to inform their payment brand customers of any significant changes to their security or operations. The standards explicitly define "changes in key management or security personnel" as a significant event requiring notification. Option B is the most accurate and comprehensive choice as it encapsulates this principle directly. Any change to a role—whether it's a new hire, a termination, or a change in responsibilities—that directly impacts the security of card products or their components is considered a significant change and must be reported to the entity managing the vendor's compliance, such as the Vendor Program Administration (VPA).

A. This is a specific example of a change that would require notification, but option B describes the overarching principle, making it the better answer.

C. Hiring personnel to interact with card issuers is an operational change, not necessarily a security one, unless their role is specifically defined as a key security function.

D. A promotion to senior management, in itself, does not require notification unless the new role is a designated key security or management position responsible for the security program.

1. PCI Security Standards Council, "PCI Card Production and Provisioning Physical Security Requirements, Version 3.0," May 2020. Section A1.1, "Vendor’s Responsibility," states, "The vendor must notify each of its payment-brand customers of any significant change to its security or operations... Examples of significant changes include, but are not limited to: ... Changes in key management or security personnel."

2. PCI Security Standards Council, "PCI Card Production and Provisioning Logical Security Requirements, Version 3.0," May 2020. Section A1.1, "Vendor’s Responsibility," contains the identical requirement: "The vendor must notify each of its payment-brand customers of any significant change to its security or operations... Examples of significant changes include, but are not limited to: ... Changes in key management or security personnel."