Cybersecurity Myths and Misconceptions: Avoiding the Hazards and Pitfalls that Derail Us
by Eugene H. Spafford, Leigh Metcalf, Josiah Dykstra
Chapter 6
Perverse Incentives and the Cobra Effect
The best-laid plans of mice and men often go awry. (The original wording in Scots-English was “The best-laid schemes o’ mice an’ men Gang aft agley”)
Terry, the CISO for GoodLife Bank, sends a memo to the security team: “I want you to prevent users from pasting text into the password field when people log in to their accounts. We do not want to make it easy for attackers to enter passwords.”
This is a well-intentioned policy that is going to backfire. It is built on a fallacy, in which the fundamental problem will get worse than before the change. When legitimate users have to type in their long, strong passwords rather than copy them from a password manager, users will likely create ...
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