An anonymous reader writes: An anonymous online black market site, Darkleaks, has been discovered which facilitates whistleblowing and helps blackmailers make money from selling confidential and valuable data in exchange for Bitcoin. The decentralized black marketplace is built on blockchain technology and is available to download as a free software package, with its source code published openly on code-sharing site Github. According to a blog post introducing the site, “there is no identity, no central operator and no interaction between leaker and buyers.” This anonymity is assured through blockchain which encrypts the files released when the payment is taken by the ‘leaker’, says developer Zozan Cudi. The developers say that Darkleaks will help “stop corruption and challenge power”, but there seems to be no limit to the files sellers and buyers can trade in, freely and anonymously – “government secrets”, “celebrity sex pictures” and “military intelligence”, among other critical and highly sensitive information.