The following advice is provided by Ryan Mowat, partner specialising in reputation management and part of the Public Eye, Private Lives practice at law firm Kingsley Napley LLP

David Bowie (pictured) has become the latest celebrity to experience a torrent of online abuse following his comments urging Scotland to reject independence in his Brit Awards acceptance speech this week. The offensive Tweets and messages on his Facebook page are thought to have been posted by so-called Cybernats. 

There ...