Other mistake: In the casino scene they're playing Baccarat. Bunky reveals a natural 8 (5 and 3). When Bond's hand is revealed, the croupier announces 9 for the win: "et neuf la banque" ("and 9 for the bank"). Only, Bond has revealed a Queen and a 5 (a natural 5).
Other mistake: When Bond is being chased on the bobsled track, just before he escapes the track.there is a shot of Eric Kriegler taking one last shot at him. In this shot however, Kriegler's bike appears to be in an open area and certainly not on a bobsled track. In fact it looks like a disused shot from when the chase started.
Other mistake: General Gogol's helicopter has Polish civilian markings, SP-(3 letters), repainted so they would resemble Soviet ones. However, Soviet markings were CCCP-(5 digits). When Gogol comes out of the helicopter, the manufacturer's logo (PZL-&346;widnik) is visible over his shoulder.
Chosen answer: Whether he talked to her or not, Bibi would have inside information simply by being around him so much. She would have overheard things that a background check wouldn't reveal, like planned criminal activity.