5 votes UK security service the MI5 has assessed that in excess of 10,000 UK nationals across virtually all government departments and key industries have been approached by malicious profiles on behalf of hostile states on a premier professional networking site over the last 5 years. To combat this issue, 'Think Before You Link' is a UK government security campaign from the Centre for the Protection of National Infrastructure (CPNI). The campaign videos and materials were created by London communications agency AML to highlight the possible dangers of connecting to unknown profiles on professional networking sites. The campaign has been adapted by UK ‘five eyes’ security partners UK, USA, Canada, Australia and New Zealand.