Guy Bunker is an internationally renowned IT expert with over 20 years' experience in information security and IT management. He currently holds the position of CTO at data security company Clearswift, and was previously the Global Security Architect for HP. Prior to that, he was Chief Scientist for Symantec and CTO of the Application and Service Management Division at Veritas (acquired by Symantec). He has recently authored a paper on security for the Elsevier Information Security Technical Report and co-authored the European Network and Information Security Agency (ENISA) report on cloud security.

He is a frequently invited speaker at conferences, including RSA, EuroCloud, and InfoSec. He has made many appearances as a data protection expert on television, including BBC Click, as well as radio and in the press. Guy is a board adviser for several small technology businesses and has published books on utility computing, backup, and data loss prevention. He holds a number of US patents and is a Chartered Engineer with the IET.