Footnotes
* Sophos, State of Ransomware 2021, April 2021. Sophos surveyed 5,400 IT managers. Average cost was for U.S. companies.
** IDC, "Worldwide Data Replication and Protection Software Forecast, 2019–2024: Rough Waters Ahead," July 2020.
*** Coveware, Ransomware Costs Double in Q4 as Ryuk, Sodinokibi Proliferate, January 2020.