Question

In ATM PIN the letter 'P' stands for

• A. Permanent
• B. Personal
• C. Public
• D. Prominent

Answer 1

Answer:

B. Personal

• The term ATM stands for Automated Teller Machine, a banking technology that revolutionized retail banking by allowing self-service transactions.
• In the banking industry, PIN represents Personal Identification Number.
• The Personal designation signifies that the numerical code is intended for use exclusively by the account holder to authenticate their identity during electronic transactions.
• Technical aspects of PIN security include:
  • Encryption: PINs are encrypted at the terminal level to prevent interception during transmission.
  • Hashing: Banks store a cryptographic hash of the PIN rather than the actual digits in their database for security.
  • Validation: PIN verification is typically handled by the Hardware Security Module (HSM) within the bank's secure network.
• The PIN is a critical component of Two-Factor Authentication (2FA), combining 'something the user has' (the physical debit or credit card) with 'something the user knows' (the secret PIN).
• Financial institutions strictly advise against sharing this number, as it constitutes the primary authorization key for accessing funds and initiating Point of Sale (POS) or cash withdrawal transactions.