LG Electronics has earned validation for its G3 flagship phone from the National Information Assurance Partnership (NIAP) under the National Security Agency (NSA) in the US. Smartphones in the US require NIAP approval in order to handle classified documents and for companies that supply the government with their goods.

G3's security is based on the Knock Code and Kill Switch features. Knock Code allows users to unlock phones by tapping in patterns and is available in most LG handsets.

Samsung has already earned the same approval for the Galaxy S5.