noun
security; data protection; confidentiality protection
Refers to the protection of confidential information, especially in computing and corporate contexts. Often used in compound terms like 機密保護法 (confidentiality protection law).
このシステムは機密保護がしっかりしている。
This system has strong security.
機密保護のため、パスワードは定期的に変更してください。
For security, please change your password regularly.
Compound of 機密 (confidential, secret) and 保護 (protection).