hardware access

Ethical use:

As required to perform your job task.

To advance the goals and profits of the company.

Un-Ethical use:

Personal use.
(Unless specifically allowed per company policy.)
Even if personal use is allowed, there are situations that are unethical:
Updating your resume.
Any use that benefits a separate business run by you, a family member, or friend.

Any use that places company resources or reputation at risk.

Any use that aids a competitor.

These are general, and broad.

Even in the case of reporting illegal activity by the company, you should avoid using company equipment to record and report the activity.

Chas