At the end of the 2008 film "Quantum of Solace", Yusef is revealed to be an agent working for Quantum, asked to seduce high-ranking women in the world's intelligence agencies. He is then "kidnapped" by Quantum, and the women are forced to become double agents in the hope of securing his freedom. This information vindicates Vesper in Bond's eyes, as he realizes she was coerced to embezzle the winnings in "Casino Royale". He does not kill Yusef, but leaves him to MI6 and tells M that she was right about Vesper. As he walks away, he drops Vesper's necklace in the snow.