(Trend Micro) Nefilim is among the notable ransomware variants that use double extortion tactics in their campaigns. First discovered in March 2020, Nefilim threatens to release victims� stolen data to coerce them into paying the ransom. Aside from its use of this tactic, another notable characteristic of Nefilim is its similarity to {{Nemty}}; in fact, it is believed to be an evolved version of the older ransomware.