i NFORMAT ION s e c u r i t y


of its citizens and other nations. Rarely does a story with a strong Information Security thread garner quite so much from mainstream press.


Practical advice for business


Worst Information leak in US history E


dward Snowden, a former Central Intelligence Agency technical worker, is


the source of one of the worst information leaks in US history. Materials provided by Mr Snowden to the media allege the US has conducted widespread and illegal surveillance


However, when the leaking of secret state information is combined with pent-up public interest in subject matter like current and future adventures in the Middle East, climate change, the banking crisis, and international relations, demand meets supply and column inches result.


Secret state information may be the most newsworthy, but the list of those who have recently suffered a leak of confidential information is long and varied – banks, the entertainment industry, energy companies, retailers. While some individuals leak for ethical reasons, there has always been an underground black market for secrets. Online anonymity, crypto-currencies, and the "dark- net" now mean that it is easier than ever before to proffer confidential information.


Putting to one side the virtues or vices of making particular information public, what lessons can we learn from these leaks as Information Security professionals? What actions should we propose to our directors while the subject of information security is fresh in their mind? What tactical, practical advice can we put into action in light of what WikiLeaks and the Snowden affair have taught us about disclosure of confidential information?


Information Security problems of this type are a subject that many find difficult to discuss. For the most part we are talking about the actions of insiders: employees, contractors, or close members of your supply chain. Managers find the broad subject of insiders harder to broach than that of the threat from external attack. However, most of the practical advice is around process rather than people, and can be implemented without alienating staff or making them feel spied upon.


1. Recognise where you are vulnerable


As with external Information security threats, the key to improving your internal Information Security posture is to first recognise where you are vulnerable. Understanding your current vulnerability to leaks should be a part of formal Information Risk Management.


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