Elon Musk visited the National Security Agency on Wednesday, according to an agency spokesperson. The initially undisclosed meeting comes roughly a week after the Trump ally said the U.S. intelligence agency needed to be overhauled. Musk’s visit was first reported by The Wall Street Journal.

The unannounced visit suggests Musk’s drive to slash the federal workforce now extends to a secretive agency known as the "puzzle palace" for its famed codebreaking abilities.

Elon Musk visited the National Security Agency on Wednesday and met with NSA chief Gen. Timothy Haugh, an agency spokesperson confirmed to Axios. Why it matters: This is Musk's first recorded visit to an intelligence agency as a special adviser to the president.