The arrest of WikiLeaks co-founder Julian Assange has re-ignited speculation about the so-called "insurance" – large encrypted files uploaded by the website.
What they are and when they will be opened is still unknown.
Assange's seven-year exile ended on Thursday, when the Metropolitan Police dragged the publisher out of the Ecuadorian Embassy in London.
While his fate is in limbo, even more uncertainty surrounds the WikiLeaks "insurance" files – believed by some to be the website's "dead man's switch" option: a massive encrypted data dump whose decryption keys will be revealed in case Assange gets
arrested or killed, or WikiLeaks gets taken down for good.