Malicious PowerShell Use, Attacks on Office 365 Accounts Surged in Q4

There was also a sharp increase in overall malware volumes in the fourth quarter of 2020, COVID-19 related attack activity, and mobile malware, new data shows. 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%.