Which of the following is NOT listed as a common access method used in industrial facilities?

• A. Badges/ID cards
• B. PINs
• C. Smart cards
• D. Magnetic stripe cards

Answer: (D)

Access control methods commonly used in industrial facilities include badges or ID cards, PINs, and smart cards. Badges/ID cards provide a visible credential and can carry electronic data for readers. PINs are something a user knows, adding a separate factor to verify identity. Smart cards combine a physical credential with an embedded chip, enabling more secure authentication and the possibility of multi-factor use or offline verification.

Magnetic stripe cards are an older technology that swiped data from a stripe on the card. They are more vulnerable to skimming and cloning and generally offer weaker security than chip-based or contactless options. Because of these security and manageability concerns, magnetic stripe cards are not considered a common access method in modern industrial facilities.