Online cybercrime activities often involve criminals hiding behind multiple identities (so-called digital personas). Unraveling these multiple digital personas is a non-trivial problem owing to the large amounts of text communicated in online social media and the large numbers of digital personas involved. The cognitive load for cybercrime investigators is immense { existing tools lack the sophisticated capabilities required to analyse digital personas in order to provide investigators
with clues to the identity of the individual or group hiding behind one or more personas. In this article, we present the Isis toolkit which addresses this very problem.
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