mysql是否检查物理文件的完整性

I know that mysql does not encrypt its files, thus it should be possible to edit said files. But my question is: assuming a malicious user did, would the mysql database detect it and see that the file integrity has been violated or would it go on as nothing has happened. Or a third option do i manually have to check the integrity myself once in a while. I know that mysql does not encrypt its files, t