Tuesday, 12 October 2021

PCI DSS 3.2 Resource Guide

 PCI DSS 3.2 Resource Guide

The Payment Card Industry Security Standards Council (PCI SSC) has published a

new version of the industry standard that businesses use to safeguard payment data

before, during and after purchase. PCI Data Security Standard (PCI DSS) version 3.2

replaces version 3.1 to address growing threats to customer payment information.

Companies that accept, process or receive payments should adopt it as soon as

possible to prevent, detect and respond to cyberattacks that can lead to breaches.

Read on for answers to key questions about updates to the standard, timelines, and

resources available for understanding and adopting PCI DSS version 3.2.

Why is the PCI DSS being updated?

A: The Council updates the PCI DSS to ensure it continues to protect against old exploits that are still causing problems, addresses new

exploits and provides greater clarity for implementing and maintaining PCI DSS controls.

Why is it PCI DSS 3.2 and not PCI DSS 4.0?

A: The industry recognizes PCI DSS as a mature standard now, which doesn’t require the significant updates we have seen in the past.


Moving forward, the marketplace can expect incremental revisions like 3.2 to address the changing threat and payment landscape,

with a focus on providing clarity and guidance to help companies use and maintain the standard as everyday business practice.

What are the types of changes included in PCI DSS 3.2?

A: PCI DSS 3.2 includes clarifications to existing requirements, new or evolving requirements, and additional guidance. These are

outlined in the Summary of Changes from PCI DSS 3.1 to PCI DSS 3.2.

What is new in PCI DSS 3.2?

A: Within the 12 core requirements of the PCI DSS, there are five new sub-requirements for service providers affecting requirements

3, 10, 11 and 12. New sub-requirements have been added to requirement 8 to ensure multi-factor authentication is used for all

non-console administrative access and all remote access in the cardholder data environment. There are also two new appendices.

Appendix A2 incorporates new migration deadlines for removal of Secure Sockets Layer (SSL) /early Transport Layer Security (TLS) in

line with the December 2015 bulletin. Appendix A3 incorporates the “Designated Entities Supplemental Validation” (DESV), which was

previously a separate document. All the changes are outlined in the Summary of Changes from PCI DSS 3.1 to PCI DSS 3.2.

How are these changes determined?

A: The standard update is part of the regular process for ensuring the PCI DSS addresses current challenges and threats. This process

factors in industry feedback from the PCI Council’s more than 700 global Participating Organizations, as well as data breach report

findings and changes in payment acceptance.

How long do organizations have to implement PCI DSS 3.2?

A: PCI DSS 3.1 will retire on 31 October 2016, and after this time all assessments will need to use version 3.2. Between now and 31

October 2016, either PCI DSS 3.1 or 3.2 may be used for PCI DSS assessments. The new requirements introduced in PCI DSS 3.2 are

considered best practices until 31 January 2018. Starting 1 February 2018 they are effective as requirements and must be used.

What supporting documentation is available for compliance with PCI DSS 3.2?

A: PCI DSS 3.2 supporting documents include updated Self-Assessment Questionnaires (SAQ), Attestation of Compliance (AOC) forms,

Report on Compliance (ROC) templates, Frequently Asked Questions (FAQ) and Glossary. All of these are available in the Documents

Library on the PCI SSC website.

Are PCI Training courses updated for PCI DSS 3.2?

A: Yes, content for all PCI Training programs is being updated to support PCI DSS 3.2.

Numerical for risk management

  Volatility with time horizon & Bond Value 


Ex.1 

If daily volatility of a Security is 2%, how much will be monthly volatility? 

Solution 

Monthly volatility = Daily Volatility * ∫30 = 2*∫30 = 2*5.477 = 10.95% Ans 

Ex.2 

If per annum volatility is 30% and nos. of trading days per annum be 250, how much will be 

daily volatility? 

Solution 

Annual Volatility = Daily Volatility * ∫250 = Daily Volatility * 15.81 

30 = Daily Volatility *15.81 

Daily volatility = 30/15.81 = 1.90% Ans. Ex.3 

If 1 day VaR of a portfolio is Rs. 50000/- with 97% confidence level. In a period of 1 year of 

300 trading days, how many times the loss on the portfolio may exceed Rs. 50000/-. Solution 

97% confidence level means loss may exceed the given level (50000)on 3 days out of 

100. 

If out of 100 days loss exceeds the given level on days =3 

Then out of 300 days, loss exceeds the given level = 3/100*300 =9 days. Ans. Ex.4 

A 5 year 5% Bond has a BPV of Rs. 50/-, how much the bond will gain or lose due to 

increase in the yield of bond by 2 bps 

Solution 

Increase in yield will affect the bond adversely and the bond will lose. Since BPV of the bond is Rs. 50/-. Increase in yield by 2 bps will result into loss of value 

of Bond by 50*2=100. Ex.5 

1 day VaR of a portfolio is Rs. 50000/- with 90% confidence level. In a period of 1 year (250 

days) how many times the loss on the portfolio may exceed Rs.50000/- Ans. 90% confidence level means on 10 days out of 100, the loss will be more than Rs. 50000/-. Out of 250 days, loss will be more than 50000/- on 25 days Ans. It means, out of 250 

days, loss will not exceed on 225 days.