Best Anti Malware Plugin in WordPress

Someone expects magic, but in software industry magic is not possible, to scan entire WordPress Directory needs time, so we have to be calm and wait. It is best plugin to find out malware script easily. But we have to remember, if a virus / malware created new like covid corona 19 virus, then this plugin can not identify at the beginning, but once it will detect. Thanks a lot to build such powerful plugin for free.