Viruses, a kind of malware, were once just nuisances that could be squashed by a reliable antivirus program without having to involve IT technicians. These days, malware is the biggest threat to businesses and their data. To give you an idea, the global economic toll of cybercrime, including malware, has grown to $2 trillion in 2019. Meanwhile, ransomware, a form of malware that holds network data hostage by encrypting it, cost businesses and individuals $11.5 billion in the same year.