What methodes of virus scanning exist?
Today’s antivirus software typically adopt one or more of the following methods to screen emails and files moving in ( and out ) of a computer: File Scanning – usually after antivirus installation and download of latest virus definitions ( file/files containing latest virus info that that the antivirus software uses to detect viruses ). This scans certain or all files on the computer to detect virus infection. All antivirus allows user scheduled background scanning. Email and Attachment Scanning – since email is the primary virus delivery mechanism, this is the most important function of the antivirus software. All antivirus today scans both email content and attachments for viruses – some like Norton picks up your emails from your email server before passing it to your computer for scanning ( downside : if scanning server is bogged down, you will encounter delays ) and others like Bullguard intercepts your emails and attachments in your computer before passing it to your email program
