A Bug Magnet is a file which has a large number of bug fixes in an observed time period. To identify what number is large an outlier detection is used, where the amount of bug fixes in that specific file is compared to the average number of bug fixes in the past 6 months. If a file has been prone to bugs in the past, it is likely that the file will continue to be prone to bugs in the future. A bug magnet file therefore has a code defect and thus jeopardizes a smooth development process.