"False positives occur when a pattern of code in the file matches the same pattern contained in a virus signature. This can occur due to a faulty signature or it can occur after improper disinfection by the same or different antivirus scanner.
False positives can be more than just annoying. Repeated warnings that are erroneous cause the same effect as the boy who cried wolf. If too many false positives occur, when a legitimate warning is presented, users may disregard it. In other cases, a false positive can cause legitimate files to be deleted, causing the operating system or program to no longer function properly."
Cause It can mistakenly detect it as a virus.