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Which of the following statements Is true whenever a cryptographic key Is retired and replaced with a new key?
Key Management Requirements:
PCI DSS Requirement 3.6.5 specifies that when a cryptographic key is retired, it must no longer be used for encryption operations but may still be retained for decryption purposes as needed (e.g., to decrypt historical data until it is re-encrypted with the new key).
Secure Key Retirement:
Retired keys should be securely stored or destroyed based on the organization's key management policy to prevent unauthorized access or misuse.
Reference in PCI DSS Documentation:
Section 3.6.5 emphasizes that retired keys must be rendered inactive for further encryption while allowing use for decryption, ensuring data continuity and compliance.
Which systems must have anti-malware solutions?
Scope of Anti-Malware Requirements
PCI DSS Requirement 5 mandates the use of anti-malware solutions on all in-scope systems unless the system is specifically documented as not being at risk from malware.
Examples of systems not at risk include those using operating systems that do not support anti-malware tools, provided proper justifications and alternative controls are implemented.
Assessment Considerations
QSAs must verify and document why a system is considered 'not at risk.'
Systems storing, processing, or transmitting cardholder data or that could impact the CDE are generally in-scope for anti-malware.
Incorrect Options
Option A: While CDE systems and connected systems require protection, the requirement applies specifically to systems at risk from malware.
Option B: Portable electronic storage is not explicitly called out for universal anti-malware but must be controlled in line with overall security policies.
Option C: Systems storing PAN are only a subset of in-scope systems.
If segmentation is being used to reduce the scope of a PCI DSS assessment, the assessor will?
Role of the Assessor in Verifying Segmentation
PCI DSS v4.0 requires assessors to confirm that segmentation controls (firewalls, ACLs, etc.) effectively isolate the CDE from out-of-scope networks.
Proper configuration and functionality testing ensure that only authorized traffic can access the CDE.
Testing Requirements
Methods include network scans, configuration reviews, and traffic analysis to verify the segmentation is functioning as intended.
Incorrect Options
Option A: Verifying traffic flow is part of the task but not the primary goal.
Option B: Payment brands do not approve segmentation controls.
Option C: Use of specific devices is not mandated for segmentation.
Which of the following is true regarding internal vulnerability scans?
Comprehensive Detailed Step by Step Explanation with All PCI DSS and Qualified Security Assessor V4 References
Relevant PCI DSS Requirement: Internal vulnerability scans are discussed under PCI DSS Requirement 11.3.1, which requires organizations to perform internal vulnerability scanning as part of their regular vulnerability management process.
Frequency and Trigger for Internal Scans:
PCI DSS v4.0 explicitly states that internal vulnerability scans should be conducted at least quarterly and after any significant change.
A 'significant change' can include modifications such as infrastructure upgrades, addition of new systems or software, and configuration changes that may impact security.
Approved Scanning Vendor (ASV):
Internal scans do not require an Approved Scanning Vendor (ASV). ASVs are specifically used for external vulnerability scans.
Qualified Security Assessor (QSA) Involvement:
QSAs are not mandated to perform internal scans. Organizations can use internal teams or trusted third-party resources for this purpose, provided the scans meet PCI DSS criteria.
Annual Scanning Misconception:
While annual compliance reports may include details of scanning activities, the requirement for internal scans is at least quarterly and event-triggered, not annually.
Reference Verification:
Requirement 11.3.1 (PCI DSS v4.0): Clearly outlines the need for quarterly scans and post-significant-change scans.
ROC and SAQ Templates: Reinforce the requirement that scans are both regular and reactive to environmental changes.
What do PCI DSS requirements for protecting cryptographic keys include?
Key Management Requirements:
PCI DSS Requirement 3.5 specifies the protection of cryptographic keys, including encryption, storage in secure cryptographic devices (SCDs), or as key components to ensure security and prevent unauthorized access.
Clarifications on Cryptographic Key Protection:
A/B: Public keys and key strength requirements are not specified in this context.
D: Separation of duties mandates that key-encrypting and data-encrypting keys must not be assigned to the same custodian.
Testing and Validation:
QSAs verify compliance by examining key management practices, storage mechanisms, and access controls for cryptographic keys during the assessment.
