What if the principle of Occam’s Razor was applied to information security controls?
“All things being equal, a simpler explanation is better than a more complex one”
In other words, if we spent more time applying simple controls rather than chasing buzzwords and “big stories”, would we see an
overall reduction in data breaches? According to the recent Verizon Communications report (pdf) we would. The report indicates that 97-percent of data breaches were the result of bad guys using simple techniques that could have been countered by applying “simple or intermediate” controls. Have we been running in circles for this long when the “simple” solution has been staring right at us?
I think this is the case because “simple” things are boring and mundane. As such, people become complacent and start to believe that effort placed on simple tasks is a waste of time since the “real” threat is going to be much more sophisticated. If the reported facts of data breaches are true, then that belief isn’t supported.
A variation of Pareto’s Principle (the 80/20 rule) seems to come into play. Perhaps if we are diligent in applying simple controls (the 20%) then maybe 80% of breaches can be avoided. Maybe instead of focusing on complex systems that require massive amounts of human resource overhead, a focus on simple controls would yield greater security results. Applying the principle of least privilege to limit access to sensitive information or replacing local administrator rights on workstations with user or power user may just have a bigger payoff than a $100k SEIM solution that is never fully deployed.
If most breaches are due to a failure in applying simple security measures, then doesn’t it make sense to apply our efforts in improving simple controls?
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