The National Security Agency (NSA) has released SE Android, a security-enhanced version of Android, which provides and enforces stricter access-control policies than those found in the popular mobile operating system by default.
SE Android is based on NSA's previous research into mandatory access controls that gave birth to the Security-Enhanced Linux project back in 2000. SE Linux is a collection of Linux kernel security modules and other tools that provide a flexible mechanism for restricting what resources users or applications can access.

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