The Evolution of Home Security

Smart locks have transformed from simple keypad entries to sophisticated security hubs that recognize faces, detect intrusions, and integrate with your entire smart home. But with great convenience comes responsibility - you need to set up your smart lock correctly to maintain security.

This guide covers everything you need to know about keeping your smart lock secure while enjoying all its benefits.

Choosing the Right Smart Lock

Connectivity Options

Each connection method has security implications:

• WiFi: Direct internet access enables remote control but creates a potential attack surface. Choose locks with encryption and regular firmware updates.
• Z-Wave/Zigbee: Local mesh protocols with encryption. Require a hub but don't expose the lock directly to the internet.
• Bluetooth: Short-range only, lower attack surface, but limits remote access without a hub.
• Thread/Matter: Modern protocol with built-in security. Excellent choice for new installations.

Physical Security Features

Don't overlook the physical aspects:

• Grade rating: ANSI/BHMA Grade 1 is commercial-grade; Grade 2 is sufficient for residential
• Bump/pick resistance: Look for ANSI 156.5 certification
• Reinforced strike plate: Install with 3-inch screws into the door frame
• Manual backup: Physical key or code access if batteries die

Installation Best Practices

Step 1: Secure Your WiFi First

Before connecting any smart lock, ensure your network is secure:

• Use WPA3 encryption (or WPA2 at minimum)
• Create a strong, unique WiFi password
• Consider a separate IoT network for smart devices
• Keep your router firmware updated

Step 2: Account Security

Protect the account that controls your lock:

• Use a unique, strong password
• Enable two-factor authentication (required, not optional)
• Use an authenticator app, not SMS for 2FA
• Review connected apps regularly

Step 3: Create User Codes Strategically

Access codes should follow these principles:

• Unique codes per person: Never share codes between users
• Avoid obvious patterns: No 1234, 0000, or birthdates
• Time-limited guest codes: Set expiration for temporary access
• Regular rotation: Change household codes periodically

Smart Lock Security Features to Enable

Auto-Lock

Configure your lock to automatically secure after a set time (30-60 seconds works well). This prevents accidental unlocked doors.

Access Notifications

Enable push notifications for:

• Lock/unlock events
• Failed access attempts
• Low battery warnings
• User code changes

Activity Logging

Keep access logs enabled and review them periodically. Look for:

• Access at unexpected times
• Unknown user codes
• Frequent failed attempts

Away Mode

Many smart locks offer an away mode that disables certain features when you're traveling. Enable this when on vacation.

Integration Security

Voice Assistant Precautions

If you integrate with Alexa, Google, or Siri:

• Require a PIN for unlock commands
• Disable "unlock with voice" in shared spaces
• Review voice history for unexpected commands

Automation Rules

Be careful with automatic unlocking:

• Geofencing: Only unlock when the specific person's phone approaches, not just any family member
• Time windows: Limit automatic unlock to reasonable hours
• Secondary verification: Combine with motion sensor or doorbell confirmation

What to Do If Something Goes Wrong

Lost Phone

1. Immediately revoke access from the lost device via web portal
2. Change your account password
3. Regenerate any user codes that might be compromised

Suspected Breach

1. Change all user codes immediately
2. Review access logs for unauthorized entry
3. Check for firmware updates
4. Reset the lock to factory settings if needed
5. Re-enroll with new credentials

Recommended Smart Locks with Strong Security

• Yale Assure Lock 2: Matter support, multiple module options
• Schlage Encode Plus: Apple Home Key, excellent encryption
• Level Lock+: Invisible design, HomeKit secure
• August WiFi Smart Lock: Easy retrofit, solid security features

The Bottom Line

Smart locks are safe when properly configured. The convenience they offer - remote access, user codes, activity logs, and automation - far outweighs the minimal additional risk compared to traditional locks, which can also be defeated by a determined intruder.

Focus on the fundamentals: secure WiFi, strong account credentials, two-factor authentication, and sensible access policies. Your smart lock will serve you well for years to come.

Browse our complete smart lock collection to find the right lock for your door.