In 2006, Lt. Col. Eric Filiol of the Laboratoire de Virologie et de Cryptologie de l'ESAT demonstrated security weaknesses, in particular within macros.[120][121][122] In 2006, Kaspersky Lab demonstrated a proof of concept virus, "Stardust", for OpenOffice.org.[123] This showed OpenOffice.org viruses are possible, but there is no known virus "in the wild".