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A smart lock lets you secure your front door without fumbling for keys, check the lock’s status remotely and grant temporary access to a visitor. But if you’re considering replacing your traditional deadbolt, one question deserves a clear answer: Can smart locks be hacked?Unfortunately, yes. Smart locks can be compromised through software vulnerabilities, stolen account credentials or weaknesses in connected devices. But that doesn’t make them inherently unsafe. The risk depends on the lock’s design, how you configure it and whether you maintain its security.For homeowners weighing convenience against break-in risks, understanding how these devices fail is the first step toward making an informed decision.Need help evaluating your home’s security? Request a free quote from ADT to discuss security equipment and monitoring options for your home.
Can Smart Locks Be Hacked by Burglars?
Yes, according to ADT, smart locks can be hacked, although the method depends on the device and its setup. Attackers might exploit outdated software, compromised accounts or insecure wireless connections. Some locks also have physical weaknesses. Strong authentication, regular updates and a well-secured home network reduce these risks.
A smart lock replaces or supplements a conventional key with electronic access through a keypad, smartphone, wireless connection or other credential. Depending on the model, it may communicate over Bluetooth, Wi-Fi or a home automation protocol.
Each connection introduces potential failure points. However, a vulnerable device is not automatically an easy target for burglars. Attackers need a viable way to exploit that particular lock or its connected accounts.
The National Institute of Standards and Technology (NIST) identifies cybersecurity capabilities that consumer devices should support, including secure configuration, data protection and software updates. Those principles offer a useful framework for evaluating smart locks.
How Do Smart Locks Get Hacked?
Smart locks face both digital and physical threats. Understanding the difference helps homeowners choose appropriate protections.
Compromised Accounts and Passwords
If someone obtains your smart-home account credentials through phishing, a reused password or a data breach, they might gain access to connected devices. The risk increases when multiple services share the same password or account recovery methods are poorly secured.
Use a unique password for your smart-home account and enable multifactor authentication if the manufacturer offers it.Related: ADT vs. SimpliSafe vs. Ring Alarm: Which Home Security System Is Right for You?
Outdated Software and Wireless Vulnerabilities
Manufacturers release firmware updates to address bugs and security flaws. A lock that no longer receives security updates could remain vulnerable to known attacks.
Wireless security also depends on implementation. Bluetooth, Wi-Fi and other communication protocols have different security requirements, so the presence of wireless connectivity alone does not establish whether a lock is secure.
Choose a model with a documented update policy and install updates promptly.
Physical Weaknesses
Electronic security doesn’t eliminate mechanical vulnerabilities. A poorly installed lock, weak door frame or inadequate strike plate can leave an entry point exposed even when the lock’s software is secure.
Inspect the door, frame and hardware as part of the same security assessment. A smart lock cannot compensate for a door that can be easily forced open.
Are Smart Locks Safer Than Traditional Deadbolts?
Neither option is automatically safer in every situation. A quality deadbolt avoids internet-based account risks, while a well-designed smart lock offers access controls and alerts that traditional locks don’t provide. Physical construction, installation and everyday use all influence security.
Security feature
Smart lock
Traditional deadbolt
Keyless entry
Available on many models
No
Remote lock status
Available on connected models
No
Digital account risk
Yes, depending on connectivity
No
Battery dependence
Most electronic models require power
No
Mechanical failure risk
Yes
Yes
Access history
Available on some models
No
A traditional deadbolt still has physical failure points, including weak installation and door-frame damage. Smart locks add digital considerations but offer useful features for households that need controlled access.
For many homeowners, the more useful question is whether the chosen lock has sound mechanical construction and credible software support, not simply whether it connects to the internet.Wondering if your current door setup can support a secure smart lock? Get a free quote and consultation from ADT to speak with a security pro.
What Should You Check Before Buying a Smart Lock?
Evaluate the lock’s security features and its compatibility with your door before purchasing. A low price or a long feature list doesn’t guarantee reliable protection.
Look for these features:
Multifactor authentication: Adds another verification step to supported accounts. Software support: Check whether the manufacturer provides security updates and for how long. Access controls: Look for individual user codes, temporary permissions and the ability to revoke access. Activity alerts: Notifications can flag unexpected lock or unlock events. Backup entry: Understand how the lock works when its battery dies or connectivity fails. Mechanical quality: Check compatibility with your door and the lock’s installation requirements.Also review the manufacturer’s privacy policy and account recovery process. A secure lock should come from a company that explains how it handles updates, credentials and security issues.Related: Protecting Sliding Glass Patio Doors: Heavy Locks and Vibration Sensors
What Happens if a Smart Lock Loses Power or Wi-Fi?
A smart lock’s reliability depends on its design. Wi-Fi outages can disable remote access and notifications, while depleted batteries can prevent electronic functions from working. Some models retain keypad access or provide a physical key override.
Before buying, confirm how the lock behaves when power or connectivity fails. Keep track of battery warnings and test the backup entry method according to the manufacturer’s instructions.
For added protection, consider how the lock fits into a wider security system. ADT’s smart lock options include remote access and lock-status alerts, with features varying by equipment and setup.
Should You Pair a Smart Lock With a Home Security System?
A smart lock controls entry, but it doesn’t replace a complete home security system. Door and window sensors can detect unauthorized openings, while cameras provide visual information about activity around entry points. Professional monitoring adds another layer by routing qualifying alarm signals to the pros.
If you’re concerned about a vulnerable entry point, consider having your doors, windows and existing security equipment assessed together.
How Can You Make a Smart Lock More Secure?
Start with a unique account password, enable multifactor authentication when available and install security updates promptly. Remove access codes you no longer need and review account activity regularly. Secure your home Wi-Fi network with a strong password and current router software.
Finally, inspect the physical door and frame. A smart lock works best when installed correctly on a sound door with appropriate hardware.
Ready to review your home’s security? Get a free quote and consultation from ADT to explore a setup that combines smart access with broader home protection.
Some or all of this content may have been generated by AI. While we strive for accuracy, AI can occasionally produce incorrect information. If you buy something via one of our links, we may earn a commission.
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