Question

several coworkers reach out to you asking about the odd message you sent asking them to urgently open an email attachment. even stranger, you know you never sent these emails. what should you do?
let them know it was not you.
try to inspect your system and fix the issue.
report this incident right away.

Explanation:

This is a cybersecurity incident where your work account/device is likely compromised, sending malicious messages. The critical first step is to escalate this to the appropriate IT or security team immediately to contain risks, while also notifying coworkers and checking your system. However, reporting the incident right away is the most formal and necessary organizational step to address a potential breach.

Answer:

Report this incident right away.