A "Bug Type" refers to a classification system used in software development and testing to categorize different types of errors or defects in a program. These bugs can arise from various sources, such as coding mistakes, design flaws, or unexpected interactions between components. Understanding bug types helps developers prioritize fixes and improve software quality. Common bug types include syntax errors, which occur when the code does not follow the correct format, and logic errors, where the code runs but produces incorrect results. Other types include performance bugs, which affect the speed or efficiency of the software, and security vulnerabilities, which can expose the system to threats.