(33)In addition, doubts about the type of information that can be shared with other market participants, or with non-supervisory authorities (such as ENISA, for analytical input, or Europol, for law enforcement purposes) lead to useful information being withheld. Therefore, the extent and quality of information sharing currently remains limited and fragmented, with relevant exchanges mostly being local (by way of national initiatives) and with no consistent Union-wide information-sharing arrangements tailored to the needs of an integrated financial system. It is therefore important to strengthen those communication channels.