Anonymous Claims to Hack Donald Trump

The hacker group released Trump's social security and phone numbers.

They say that the time is nigh to unite to “fight fascism” and "to stop any proposed Fourth Reich by the fascist Donald Trump.”

Trump’s campaign issued this statement: "The government and law enforcement authorities are seeking the arrest of the people responsible for attempting to illegally hack Mr. Trump’s accounts and telephone information.”

A government official confirmed to ABC News that federal authorities are investigating.

After the documents were posted, Anonymous issued this follow-up tweet.

ABC News’ Jack Date contributed to this report.