noun
personal information; information about oneself
Refers to data or details about an individual, often used in contexts like privacy, forms, or online profiles.
ネット上で自己情報を公開するのは危険だ。
It's dangerous to disclose personal information online.
この書類には自己情報を記入してください。
Please fill in your personal information on this form.
個人情報 is the more common legal and everyday term for 'personal information'; 自己情報 is less frequent and often used in specific contexts like self-disclosure or privacy management.
Compound of 自己 (self) and 情報 (information).