In data security, the transmission of data to unauthorized users by processes with legitimate access to data. A compiler, for example, could leak a proprietary program whilst it is being compiled.

• 在数据保密学中，通过合法访问数据的进程将数据传输给未授权的用户的过程。例如，编译程序在编译期间便可能泄漏专用程序。