angler-fishThe Vulnerability History Project

Lesson: Too Many Cooks

Were there more than 10 different developers who worked on the vulnerable code in its lifetime? Familiarity is difficult to gain with code. Even for the best developers, contributing to a piece of source code for the first time means that they must understand the design decisions from previous developers, any issues the code has had historically, and the coding style. Thus, the first commit any developer makes is risky. Furthermore, research has shown a strong correlation between code that had many developers and code with vulnerabilities. Note that we used 10 as an arbitrary threshold, but it's really more of a spectrum.


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