Exam CAS-004 topic 1 question 199 discussion

A primary account number (PAN) is the technical term for a payment card number, the series of digits (usually 12 to 19) embossed or encoded on a credit, debit, or prepaid card that identifies the issuer and specific account.

D. agreed, this is a legal concern.

the question says, "which of the following types of data was compromised, and what steps should the incident response plan contain?" the customer ID was what data was compromised. D does not answer the first half (before the ,) of the question.

1111-1111-1111-1111 is the laziest credit card regex pull. at least get the starting numbers correct 3=AMEX, 4 = Visa, 5 = MC and 6 = DISCOVER. Source: Verifying each answer against Chat GPT, my experience, other test banks, a written book, and weighing in the discussion from all users to create a 100% accurate guide for myself before I take the exam. (It isn't easy because of the time needed, but it is doing my diligence)

PAN is referring to a primary account number, which is associated with payment cards, like debit and credit cards. Also, the regular expression matches a string of digits that is formatted like a credit card number (four sets of four digits separated by hyphens). The answer is D.

If you have to store PAN (Personal Account Numbers) data, then PCI DSS Requirement 3.4 requires that yo render it unreadable and unrecoverable through one of the following methods: One-way hashes based on strong cryptography (has must be of the entire PAN) Truncation (hashing cannot be used to replace the truncated segment of PAN) Index tokens and pads (pads must be securely stored) Strong cryptography with associated key-management processes and procedures

IT IS NOT D. that is a personal area network.. does not make sense to exfiltrate that. this is talking about accounts where all of those listed expressions are part of the customer id.. Introduction to SQL REGEXP A regular expression in standard query language (SQL) is a special rule that is used to define or describe a search pattern or characters that a particular expression can hold. For example, a phone number can only have 10 digits, so in order to check if a string of numbers is a phone number or not, we can create a regular expression for it. It is an in-built specification supported in almost all SQL databases. Regular expressions are very helpful as they let us place multiple lines of code or information in just 1 line. It is particularly helpful in SQL databases when we want to perform validation tasks like if the information provided is a valid PIN code, Contact No, email address, etc. Regular expressions also help in pattern matching or searching the database. https://www.educba.com/sql-regexp/