This technique hides specific data fields, like masking credit card numbers, where only the last four digits are visible (e.g., 1234-XXXX-XXXX-5678). It’s useful for call centers needing partial visibility for customer verification.
Uses cryptographic hashing (e.g., SHA-256) to convert sensitive information (like user emails) into fixed-length, irreversible hash codes, ensuring no direct link to original values.
Replaces direct identifiers (e.g., names) with pseudonyms (e.g., user ID codes), which can be mapped back only with secure access to a separate decryption key or reference table.
Replaces sensitive data with a token (like a randomly generated number). For example, substituting a credit card number with a token in payment systems, so actual card data remains secure.
Dynamically adapts data visibility by fully redacting or partially masking sensitive fields based on user roles and access privileges.