Last week’s cyberattack on medical technology giant Stryker was limited to its internal Microsoft environment and remotely wiped tens of thousands of employee devices.

The organization says in an update on Sunday that all its medical devices are safe to use but electronic ordering systems remain offline, and customers must place orders manually through sales representatives.

Stryker emphasizes that the incident was not a ransomware attack and that the threat actor did not deploy any malware on its systems.