Source: National Cyber Security – Produced By Gregory Evans
On Thursday, United Airlines, the Wall Street Journal, the popular financial blog site ZeroHedge and the New York Stock Exchange all had to shut down their services for “technical reasons.” Although the Department of Homeland Security released a statement saying that there was “no sign of malicious activity” at the New York Stock Exchange, intellectual speculators quickly joined their financial peers to suggest these events were not coincidental and the result of a coordinated cyberattack. Simple probabilities support the view that this was not a mere technical failure. Given the criticality of technology to United Airlines, let’s assume for a moment it has a daily reliability rate of 99.99 percent, meaning it has a system failure once every 10,000 days, or once every 30 years. Seems reasonable. Now, let’s assume the New York Stock Exchange has a daily reliability rate of 99.9 percent, meaning it fails once every 1000 days, or approximately once every 3 years. Given the Wall Street Journal doesn’t directly handle billions of dollars or millions of lives, let’s assume its daily reliability rate is 99 percent, equating to one failure every 100 days. If these events were truly random and independent, then the frequency of all […]
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