  We consider gravitational collapse of a massless scalar field in
asymptotically Anti de Sitter spacetime. Following the AdS/CFT dictionary we
further study correlations in the field theory side by way of the Klein-Gordon
equation of a probe scalar field in the collapsing background. We present
evidence that in a certain regime the probe scalar field behaves chaotically,
thus supporting Hawking's argument in the black hole information paradox
proposing that although the information can be retrieved in principle,
deterministic chaos impairs, in practice, the process of unitary extraction of
information from a black hole. We emphasize that quantum chaos will change this
picture.
