Multi-factor authentication in Azure - Step-by-Step Execution

Process Flow - Multi-factor authentication

User tries to sign in

↓

Enter username and password

↓

System verifies credentials

↓

Prompt for second factor

↓

User provides second factor

↓

System verifies second factor

↓

Access granted if both factors valid

↓

Access denied if any factor invalid

This flow shows how a user signs in with two steps: first password, then a second factor, to increase security.

Execution Sample

Azure

1. User enters username and password
2. System checks password
3. System prompts for second factor
4. User provides second factor
5. System verifies second factor
6. Access granted or denied

This sequence shows the step-by-step process of multi-factor authentication in Azure.

Process Table

Step	Action	Input	System Check	Result
1	User enters credentials	username + password	Verify password	Password valid
2	Prompt second factor	N/A	Wait for second factor	Prompt shown
3	User provides second factor	e.g. phone code	Verify second factor	Second factor valid
4	Grant access	N/A	Access control	Access granted
5	If any factor invalid	N/A	Access control	Access denied

💡 Access granted only if both password and second factor are valid; otherwise access denied.

Status Tracker

Variable	Start	After Step 1	After Step 3	Final
password_valid	false	true	true	true
second_factor_valid	false	false	true	true
access_granted	false	false	false	true

Key Moments - 2 Insights

Why does the system ask for a second factor after verifying the password?

Because verifying the password alone is not enough; the second factor adds extra security. See execution_table step 2 where the prompt happens after password validation.

What happens if the second factor is invalid?

Access is denied even if the password was correct. Refer to execution_table step 5 where invalid second factor leads to denial.

Visual Quiz - 3 Questions

Look at the execution table, what is the system's result after step 1?

A Password valid

B Password invalid

C Access granted

D Second factor requested

💡 Hint

Check the 'Result' column for step 1 in the execution_table.

At which step does the system verify the second factor?

A Step 1

B Step 3

C Step 2

D Step 4

💡 Hint

Look at the 'Action' and 'System Check' columns in the execution_table.

If the second factor is invalid, what will be the final access result?

A Access granted

B Prompt second factor again

C Access denied

D Password re-verified

💡 Hint

Refer to the last row in execution_table describing invalid factor outcome.

Concept Snapshot

Multi-factor authentication (MFA) requires two steps to sign in:
1. Enter username and password
2. Provide a second factor (like a phone code)
Both must be valid to grant access.
This adds extra security beyond just a password.

Full Transcript

Multi-factor authentication in Azure means users sign in with two steps. First, they enter their username and password. The system checks if the password is correct. If it is, the system asks for a second factor, such as a code from a phone app. The user provides this second factor. The system verifies it. If both the password and second factor are valid, access is granted. If either is invalid, access is denied. This process helps protect accounts by requiring more than just a password.