Final answer:
The requirement for restricting physical access to cardholder data is Requirement 9, entailing secure physical controls. Individuals can extend this security by using strong passwords, anti-virus software, and being aware of their online privacy and security. These practices help protect against identity theft and data breaches.
Step-by-step explanation:
The requirement for restricting physical access to cardholder data is Requirement 9: Restrict physical access to cardholder data. To protect such sensitive information, measures such as secure facilities, locked rooms, and limited access to systems containing card data are essential. For individuals, this can extend to protecting personal belongings such as credit and debit cards, securing mailboxes, and using strong, unique passwords and PINs.
Furthermore, individuals should use anti-virus software on their computers and notify banks promptly upon changes in address or phone. Understanding and exercising privacy rights, reading privacy policies, providing only necessary information, questioning the data collection process, and monitoring credit history are crucial for maintaining online privacy and security.
Actions like enabling two-factor authentication, creating stronger passwords, and staying educated on scam avoidance also contribute significantly to securing personal and financial data both for individuals and within corporate or governmental entities.