A license is required to export US-origin items/technology to the entity, typically reviewed under a presumption of denial (e.g. BIS Entity List). It is not an asset freeze.
Added by the Bureau of Industry and Security to the Entity List (Supplement No. 4 to 15 CFR Part 744), effective November 4, 2021, based on a determination that NSO Group developed and supplied spyware used by foreign governments to maliciously target government officials, journalists, businesspeople, activists, academics, and embassy workers. Effect: a license is required for the export, reexport, or in-country transfer of all items subject to the EAR to NSO Group, no license exceptions are available, and BIS applies a license-review policy of presumption of denial. This is an export-control restriction on US-origin items/technology going TO NSO; it is NOT an asset-blocking sanction (no OFAC SDN designation, no property blocking, no general prohibition on dealings with the company).
Federal Register: Addition of Certain Entities to the Entity List (86 FR 60759; Doc. 2021-24123)