Detailed explanation! Set up two-factor authentication on Slack

Morita from the technical sales department .

The other day, we introduced " Improve your security in just 5 minutes! Let's set up two-factor authentication!

We will continue to explain in detail how to set up two-factor authentication for various services.
Slack , a chat tool commonly used among engineers .

We use different chat tools such as Slack and Chatwork depending on customer needs

By the way, if you're wondering what Slack is and whether it's delicious,

[For complete beginners!] How to use the communication tool Slack - TECH ACADEMY magazine

Please read it and try using it once

◆ Information has been leaked on Slack in the past..

In fact, Slack has had its user database accessed illegally in the past, resulting in data leaks

Unauthorized access to Slack, urging the adoption of two-factor authentication - ITmedia NEWS

Slack Technologies, the company that operates Slack, is also preparing for such an event and is asking everyone to set up two-factor authentication.
We urge everyone to take this opportunity to do so.

◆Setting up two-factor authentication on Slack

Now let's start the setup

・You have already registered a Slack account ⇒ If you haven't done so yet, click here.
・You have already installed Google Authenticator on your smartphone ⇒ If you haven't done so yet, click here.

This is assumed

First, log in to Slack and press the appropriate buttons in the order 1 and 2 in the image below

Click the gear icon in the window that appears on the right

The Account screen will open. Click "expand" on the right side of the "Two-Factor Authentication" section and click the area in the red box that appears

Press the red frame area

You will be taken to the two-step authentication settings screen.
Launch the "Google Authenticator" app on your smartphone.
Tap the "+" button and scan the QR code displayed on your PC screen as shown in the image below.
A new Slack code will be added to the app.
Enter the Slack code added to the app into the corresponding field on your PC screen as shown in the image below, then click "Verify Code and Activate."

In the unlikely event that you lose the smartphone on which you installed the "Google Authenticator," you can send an SMS to another mobile phone.
If you want to set it up, enter your mobile phone number and click "Add phone number." If you don't want to set it up, click "skip."
I chose "skip" this time.

Enter your email address and password to sign in again

Enter the Slack code displayed in the "Google Authenticator" on your smartphone and click "Sign in."

If you want to configure backup settings, select either "SMS Text Message" or "Use an app" below. If you do not want to configure backup settings, press "skip."
In this example, I selected "skip."

You will be given a backup code, so please print it out and keep it for future reference.
If for some reason you are unable to retrieve the code from "Google Authenticator", you can use this code.

Finally, if the screen below shows "Active", the process is complete

It's a simple setup, so please give it a try

For any other inquiries regarding server security, please contact us here .