avast! antivirus represents the range of popular antivirus products developed by ALWIL Software a.s., a technology company based in Prague, Czech Republic. First released back in 1988, avast! antivirus is now protecting more than 80 million users worldwide against the ever increasing threat from computer viruses and other forms of malware. The Home Edition of avast! antivirus can be downloaded and used completely free of charge, while the paid Professional Edition provides additional features to those users and businesses that need them. Here you can find interesting information about avast! and computer security in general, which has been posted by avast! staff. We hope you find it useful.