Security researchers have demonstrated how attackers could cause physical damage to hard drives, and cause PCs to crash, just by playing sounds through a computer's speaker.
Graham Cluley is an award-winning security blogger, researcher and public speaker. He has been working in the computer security industry since the early 1990s, having been employed by companies such as Sophos, McAfee and Dr Solomon’s. He has given talks about computer security for some of the world’s largest companies, worked with law enforcement agencies on investigations into hacking groups, and regularly appears on TV and radio explaining computer security threats.
In 2011 he was inducted into the InfoSecurity Europe Hall of Fame.
Follow him on Twitter at @gcluley