50. When personal data moves across borders it may put at increased risk the ability of individuals to exercise data protection rights to protect themselves from the unlawful use or disclosure of that data. At the same time, supervisory authorities may find that they are unable to pursue complaints or conduct investigations relating to the activities outside their borders. Their efforts to work together in the cross-border context may also be hampered by insufficient preventative or remedial powers, inconsistent legal regimes. Therefore, there is a need to promote closer co-operation among data protection supervisory authorities to help them exchange information with their foreign counterparts.