Question from the English : Email reading test

What is the first step Michael must follow according to Emma's email?

From: Emma Svensson <[email protected]>
To: Michael Müller <[email protected]>
Cc: Jean Dupont <[email protected]>
Subject: Urgent: Security Vulnerability in User Authentication

Hi Michael,

I hope you're doing well. We've identified a critical security vulnerability in our user authentication module. This issue could potentially allow unauthorized access to user accounts.

Here's what I need you to do:
1. Immediately disable the current authentication module to prevent any potential breaches.
2. Work with David Silva to implement a temporary fix by deploying the previous stable version.
3. Conduct a thorough code review of the current module to identify and fix the vulnerability.
4. Once the issue is resolved, test the new version thoroughly before redeployment.
5. Keep Jean and me updated on your progress every step of the way.

This is a high-priority task, so please treat it with utmost urgency.

Best regards,
Emma

PS: Michael, I know this is a lot to handle, but I trust your expertise in managing such critical issues. If you need any additional resources, let me know immediately.