WikiLeaks founder Julian Assange now makes his associates sign a draconian nondisclosure agreement that, among other things, asserts that the organization’s huge trove of leaked material is “solely the property of WikiLeaks,” according to a report Wednesday.

“You accept and agree that the information disclosed, or to be disclosed to you pursuant to this agreement is, by its nature, valuable proprietary commercial information,” the agreement reads, “the misuse or unauthorized disclosure of which would be likely to cause us considerable damage.”

The confidentiality agreement, revealed by the New Statesman, imposes a penalty of 12 million British pounds– nearly $20 million — on anyone responsible for a significant leak of the organization’s unpublished material.