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Two-Factor Authentication (2FA) Setup Guide

EsusuOnline  ·  Security Centre  ·  April 2026

What is Two-Factor Authentication?

2FA adds a second verification step at login. Even if someone knows your password, they cannot access your account without also passing the second check. EsusuOnline supports four 2FA methods — choose the one that suits you best.

🔑

Authenticator App

Google Authenticator, Authy, Microsoft Authenticator — works offline

Recommended
📱

SMS

One-time code sent to your registered mobile number

📧

Email OTP

Six-digit code sent to your account email address

🔐

Security Key

Hardware key, Touch ID, Face ID, or Windows Hello (WebAuthn)

A Setting Up an Authenticator App (Recommended)
1

Navigate to Security & 2FA

Click your profile avatar (top-right) and select Security & 2FA, or open the sidebar and choose Settings → Security & 2FA. The URL will be esusuonline.org/security/2fa.

esusuonline.org/security/2fa
🛡️ Two-Factor Authentication
Secure your account with an additional layer of protection
OFF
⚠️  2FA is not enabled. Your account is protected by password only.
2

Choose the "Authenticator" tab and click Set Up

The page has four tabs — one per method. Select Authenticator (active by default), then click "Set Up Authenticator".

esusuonline.org/security/2fa
🔑 Authenticator
📱 SMS
📧 Email
🔐 Security Key
Authenticator App
Use an app like Google Authenticator or Authy to generate time-based codes. Works offline.
3

Scan the QR code with your authenticator app

A dialog appears with a QR code. Open your authenticator app, tap "+" or "Add account", choose Scan QR code, and point the camera at the code.

If you can't scan, tap "Can't scan? Enter key manually" and type the secret key shown below the QR code.

Set Up Authenticator — Step 1 of 2
Scan this QR code
Open your authenticator app and scan:
Can't scan?
JBSWY3DPEHPK3PXP
4

Enter the 6-digit code from your app

After adding the account in your app, a 6-digit rotating code appears (refreshes every 30 seconds). Type it into the verification field and click "Verify & Activate".

Set Up Authenticator — Step 2 of 2
Enter verification code
Enter the 6-digit code shown in your authenticator app
4
8
3
5

Save your backup codes

After successful verification, 10 single-use backup codes are displayed. Save them somewhere safe (password manager, printed paper) — you'll need one if you ever lose access to your authenticator app.

⚠️ Important: Each backup code can only be used once. Store them securely now — they will not be shown again.
Backup Codes
🔒 Your Backup Codes
Store these in a safe place. Each code can only be used once.
7f3k-9xp2
4m8n-2qrt
b5wz-6hlj
c1vy-0das
p9ux-3efi
r2gk-7mnb
s6ot-4cwq
v0hl-8zpy
x3ja-5dek
y8rb-1nuf
6

Confirm 2FA is active

The Security page now shows your 2FA status as ON with your enabled method listed.

esusuonline.org/security/2fa
✅  2FA is enabled. Your account has an extra layer of security.
🔑
Authenticator App
Last used: just now
Active
B Setting Up SMS 2FA
1

Open the SMS tab and enter your phone number

Click the SMS tab, enter your mobile number in international format (e.g. +2348012345678), and click "Send Code".

esusuonline.org/security/2fa
🔑 Authenticator
📱 SMS
📧 Email
🔐 Security Key
Mobile number
+2348012345678
2

Enter the SMS code

Check your phone for a 6-digit code. Enter it in the verification field (code expires in 5 minutes) and click "Verify".

SMS Verification
Code sent to +234 801 *** 5678 · expires in 4:32
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2
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1
C Setting Up Email 2FA
1

Click "Send Code" on the Email tab

EsusuOnline sends a 6-digit code to your registered email. The code expires in 5 minutes.

esusuonline.org/security/2fa
🔑 Authenticator
📱 SMS
📧 Email
🔐 Security Key
A verification code will be sent to your registered email address.
✅ Code sent! Check your inbox and spam folder.
2

Enter the code from your email

Copy the 6-digit code from the email and paste or type it in, then click "Verify".

Email Verification
Enter the 6-digit code from your email · expires in 4:51
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D What Happens at Your Next Login
1

Enter your email and password as usual

The login screen looks identical to before. Submit your credentials normally.

2

You are prompted for your 2FA code

After a correct password, EsusuOnline asks for your second factor. Open your authenticator app (or check your SMS/email) for the current code.

esusuonline.org/login
🔐
Two-Factor Verification
Enter the 6-digit code from your authenticator app
Lost access? Use a backup code

🔒 Security Tips