The five-step OPSEC (Operations Security) process involves the following steps along with their associated actions:

1. Identify Critical Information: Identify and determine the critical information that needs protection.

2. Analyze Threats: Identify potential threats to the critical information.

3. Analyze Vulnerabilities: Identify vulnerabilities or weaknesses that could be exploited by the threats.

4. Assess Risk: Assess the risk level by considering the impact of the threats and vulnerabilities on the critical information.

5. Apply Countermeasures: Implement appropriate countermeasures to mitigate the identified risks and protect the critical information.