Is a smart lock more secure than a keyed lock?
Security features to compare
Smart locks often add features like auto-lock, tamper alarms, and activity logs that keyed locks lack. Many use encrypted communication (like AES-128) and two-factor authentication for remote access. However, a keyed lock can't be hacked remotely, and it doesn't rely on batteries or Wi-Fi.
Physical security matters most: a smart lock with a flimsy deadbolt is less secure than a solid keyed deadbolt. Look for ANSI/BHMA Grade 1 or 2 certification, which rates strength and durability. Grade 3 is the lowest and common in budget models.
- Auto-lock and tamper alerts add convenience and awareness
- Encryption and 2FA protect remote access
- Battery failure can lock you out if no key backup
- ANSI/BHMA grade indicates physical strength
Potential weaknesses
Some early smart locks had flaws like unencrypted Bluetooth or easy bypass via the keyway. Reputable brands issue firmware updates, but cheaper no-name models may never get patched. If your smart lock connects to Wi-Fi, your home network security becomes part of the equation.
A keyed lock can be picked or bumped, but so can the mechanical override on many smart locks. The biggest risk for either type is a weak door frame or improper installation—a kick-in defeats both.
- Firmware updates are crucial; check brand reputation
- Wi-Fi connection adds network security concerns
- Mechanical override can be a weak point
- Door frame and strike plate are often the weakest link
Making the choice
If you want remote access, temporary codes for guests, and activity logs, a smart lock from a well-known brand (like August, Schlage, Yale) can be more secure than a basic keyed lock. If you prefer no batteries, no apps, and no network dependency, a high-security keyed lock (like Medeco or ASSA) is excellent.
For many homes, a hybrid approach works: a smart lock with a physical key backup, installed on a reinforced door. That gives you convenience without sacrificing fallback access.
- Choose a reputable brand with regular updates
- Look for ANSI Grade 1 or 2
- Reinforce the door frame and strike plate
- Consider a smart lock with key backup
Common mistakes
- Assuming all smart locks are hack-proof; cheap models may have flaws.
- Ignoring physical security—a strong lock on a weak door is useless.
- Forgetting that batteries can die, leaving you locked out without a key backup.
