George Burgess is coordinator of museum operations for the Florida museum of Natural History and is director of the Florida Program for Shark Research and the International Shark Attack File.

Palo Alto Networks Director of Threat Intelligence Ryan Olson said the malware had limited functionality and his firm had uncovered no examples of data theft or other harm as a result of the attack.

Maurice Watkins, the club's solicitor and former director, was targeted for a similar attack two years ago when it emerged that he had sold the Glazer family some of his shares in the club.