個人情報漏洩
Identity theft can be partially mitigated by "not" identifying oneself unnecessarily (a form of information security control known as risk avoidance). This implies that organizations, IT systems, and procedures should not demand excessive amounts of personal information or credentials for identification and authentication. Requiring, storing, and processing personal identifiers (such as Social Security number, national identification number, driver's license number, credit card number, etc.) increases the risks of identity theft unless this valuable personal information is adequately secured at all times. Committing personal identifiers to memory is a sound practice that can reduce the risks of a would-be identity thief from obtaining these records. To help in remembering numbers such as social security numbers and credit card numbers, it is helpful to consider using mnemonic techniques or memory aids such as the mnemonic Major System.