Cryptology ePrint Archive: BibTeX Citation of Report 2015/456

@misc{cryptoeprint:2015:456,
    author = {Iraklis Symeonids, Filipe Beato, Pagona Tsormpatzoudi, Bart Preneel},
    title = {Collateral damage of Facebook Apps: an enhanced privacy scoring model},
    howpublished = {Cryptology ePrint Archive, Report 2015/456},
    year = {2015},
    note = {\url{http://eprint.iacr.org/}},
}

You will need the url.sty package (comes with most LaTeX installations) for the last line. Otherwise, remove the \url command.