The Complete Guide to Login Theft Prevention
How to protect your accounts from unauthorized login attempts.
Login theft prevention is a security service that detects and blocks unauthorized access to your account in real time. It provides features such as two-factor authentication, login history tracking, and suspicious access blocking.
Table of Contents
1. Service Overview
Login theft prevention is a comprehensive security service that detects and blocks unauthorized account access in real time.
[Key Features]
• Real-time login notifications
• Two-factor authentication (2FA)
• Suspicious login blocking
• IP address tracking
• Device registration and management
• Login history lookup
[Protection Scope]
• Website accounts
• Mobile apps
• Financial services
• Social media
[Providers]
Carriers, security companies, and individual service providers
[Pricing]
Mostly free
2. Setting Up Two-Factor Authentication
[What is Two-Factor Authentication (2FA)?]
Password + additional verification method
→ Even if your password is leaked, your account stays safe
[Types of Authentication Methods]
**1. SMS Authentication**
• Receive a code via text message
• Most common method
• Risk of SIM swapping
**2. Authenticator App (Recommended)**
• Google Authenticator
• Microsoft Authenticator
• Authy
• 6-digit code that changes every 30 seconds
• Works without internet
**3. Hardware Key**
• YubiKey
• Requires a physical key
• Highest level of security
[Setting Up 2FA for Google Account]
1. Go to google.com/account/security
2. Click Two-Step Verification
3. Click Get Started
4. Enter your phone number
5. Receive and confirm the code
6. Add an authenticator app (recommended)
3. Login Detection and Notifications
[Real-Time Login Notifications]
• Instant alert when a new device logs in
• Via SMS, email, or app push notification
• Block immediately if it was not you
[Suspicious Login Detection]
**Conditions for Automatic Blocking**
• Login from a foreign IP address
• Login from a different country within a short time
• Unknown device
• Unusual time zone
• Successful login after multiple failed attempts
**Information Included in Notifications**
• Login time
• IP address and location
• Device info (browser, OS)
• Login method
[How to Respond]
1. If it was you
→ Dismiss the alert or click ‘Yes, it was me’
2. If it was not you
→ Click ‘No’
→ Change your password immediately
→ Log out of all devices
4. Device Management and Session Control
[Registering Trusted Devices]
• Register devices you use frequently
• Registered devices can skip 2FA
• Maximum of 5–10 devices
[Managing Active Sessions]
**Google Account Example**
1. Go to google.com/account/devices
2. View the list of currently logged-in devices
3. If you find an unrecognized device
→ Click ‘Sign out’
→ Change your password
**Signing Out of All Devices**
• Go to account security settings
• Click ‘End all sessions’
• Re-login required
[Steps After Changing Your Password]
• Re-login to all apps
• Update email clients
• Update saved passwords
5. Strengthening Account Security and Recovery
[Strong Passwords]
• 12 or more characters
• Mix of uppercase, lowercase, numbers, and special characters
• Use a different password for each site
• Use a password manager
[Setting Up Recovery Options]
**Essential!**
• Register a recovery email
• Register a recovery phone number
• Save backup codes (print them out)
[Regular Security Checkups]
• Monthly: Review login history
• Quarterly: Change passwords
• Biannually: Update recovery options
[If Your Account Has Been Compromised]
1. Change your password immediately
• Change it from a different device
• Use a strong password
2. End all active sessions
3. Reset 2FA
4. Check recovery email
• Verify it has not been changed
5. Review account activity
• Sent emails
• Purchase history
• Changes to account settings
6. Contact customer support
• Submit an account recovery request
Key Tips
- •Always enable two-factor authentication. An authenticator app is more secure than SMS.
- •Regularly review your login history to detect suspicious access early.
- •Avoid logging into important accounts over public Wi-Fi.
- •Using a password manager makes it easy to maintain strong and unique passwords.
- •Print out your backup codes and store them in a safe place.
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Have any questions?