信息泄露是指在未经授权的情况下，个人或机构的敏感信息被泄露给第三方，导致信息安全问题。常见的信息泄露如数据库泄露、网络攻击导致信息泄露以及认为因素导致的信息泄露等。

英文翻译：

Information leakage refers to the unauthorized disclosure of sensitive personal or institutional information to third parties, resulting in information security issues. Common information leaks include database leaks, information leaks caused by network attacks and information leaks caused by perceived factors.