PCI SSC QSA_New_V4 Dumps Questions Answers

Hashing and Truncation

PCI DSS Requirement 3.4 mandates protecting stored PAN using methods like hashing and truncation. If both versions coexist, controls must ensure they cannot be combined to reconstruct the original PAN​​.

Incorrect Options

Option B: Truncation is unrelated to hashed PANs.

Option C: Correlation of hashed and truncated versions to identify the PAN violates PCI DSS principles.

Option D: Coexistence of hashed and truncated PANs is permissible if proper controls are in place.

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Scope of PCI DSS:

PCI DSS applies to all systems that store, process, or transmit cardholder data (CHD), as well as systems that can impact the security of the CDE. An LDAP server providing authentication services is considered a connected system that could impact the security of CHD and is therefore in scope​​.

Clarifications on Scope:

Systems like LDAP servers that do not directly handle CHD but provide critical services to the CDE (e.g., authentication) are in scope for PCI DSS.

Invalid Options:

B/C/D:Scoping is not limited to direct storage, processing, or transmission of CHD but includes systems that could affect the CDE’s security.

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​​.