Michael Moore has launched a website that allows whistleblowers to securely leak information about the Trump administration.

TrumpiLeaks encourages sources to use encryption software to share documents, photographs, video and audio recordings pertaining to Donald Trump and his associates with the film-maker and activist.

“Patriotic Americans in government, law enforcement or the private sector with knowledge of crimes, breaches of public trust and misconduct committed by Donald J. Trump and his associates are needed to blow the whistle in the name of protecting the United States of America from tyranny,” the documentary film-maker wrote in an open letter published by the Huffington Post.

“I know this is risky. I knew we may get in trouble. But too much is at stake to play it safe.”

Moore said that, while no digital communication was 100% secure, he and his team had used encrypted messaging apps such as Signal, Peerio and WhatsApp to protect anonymity.

TrumpiLeaks was announced one day after the U.S. Department of Justice said that a 25-year-old contractor had been arrested and charged with leaking classified National Security Agency material related to Russian interference in the 2016 presidential election. Trump has called for a crackdown on leaks to the media.

Moore, an outspoken critic of the U.S. president, is working on a documentary about the 2016 presidential election entitled "Fahrenheit 11/9." His other films include "Fahrenheit 9/11," which was a critical look at the presidency of George W. Bush and the wars in Iraq and Afghanistan, and 2002’s "Bowling for Columbine," about gun control in the US.

Moore also recently announced that he will star in a Broadway show about Trump. Entitled "The Terms of My Surrender," it’s described by Moore as “a humorous play about a country that’s just elected a madman.” The play begins in August and will run for 12 weeks.

Originally published by The Guardian