Incomplete Cleanup

Incomplete cleanup happens when developers focus on the primary function of their code but neglect the final 'housekeeping' steps. This often involves forgetting to close file handles, database connections, or network sockets, or leaving temporary files in shared directories. These leftover resources can accumulate over time, leading to performance degradation, data leaks, or denial of service as system limits are reached. From a security perspective, uncleaned temporary files can expose sensitive data to other users or processes on the system. In multi-user environments, this can allow unauthorized access to session tokens, configuration secrets, or user data. The risk is particularly high when predictable filenames are used, as attackers can easily locate and exploit these residual artifacts.