Multiple employees receive an email with a malicious attachment that begins to encrypt their hard drives and mapped shares on their devices when it is opened. The network and security teams perform the following actions: Shut down all network shares. Run an email search identifying all employees who received the malicious message. Reimage all devices belonging to users who opened the attachment. Next, the teams want to re-enable the network shares. Which of the following BEST describes this phase of the incident response process?