PDF For security teams, there was a lot more of everything to defend against in the final quarter of 2020 compared to previous months. PowerShell threats grew 208%; Microsoft Office malware increased by 199%, while malware targeting mobile devices rose 118% between the third and fourth quarters of 2020. And COVID-19 related malware and threats surged 114%. A new analysis by McAfee of threat data during the period showed similar increases on several other fronts as well. The volume of malware threats detected on enterprise networks rose 10% to 648 threats per minute compared to 588 in Q3, 2020; ransomware once again grew in volume, this time by 69% and adversaries hammered cloud user accounts belonging to McAfee's customers with an astounding 3.1 million attacks in the last quarter of 2020.