Smart locks are showing up on more front doors every year, and the question homeowners ask most often before buying is simple: are smart locks safe? It is a fair concern. Any device that connects to your home network and controls physical access deserves serious scrutiny before you trust it with your family's security.

The short answer is yes — smart locks can be very safe. But that safety is not automatic. It depends on the lock's design, the technology behind it, and how you set it up and maintain it. Like any security tool, a smart lock is only as strong as the choices made around it.

This guide breaks down exactly how smart locks work, the genuine security risks you should understand, and the practical steps you can take to mitigate those risks. We also cover what to look for in a trustworthy lock so you can make a confident, informed decision.

How Smart Locks Actually Work

A smart lock replaces your traditional deadbolt or entry lock with a motorized unit that can be controlled through multiple methods — a keypad code, a fingerprint scan, a mobile app, or voice commands — depending on the model. Instead of a purely mechanical locking mechanism operated by a physical key, smart locks use an internal motor to operate the locking mechanism. The "smart" part comes from the wireless communication layer that connects the lock to your phone, your home network, or a gateway device.

There are a few distinct connectivity types, and each has different security characteristics. Keypad deadbolt and keypad latch locks operate entirely offline — no Internet connection, no app, just a local keypad code and a physical key backup. Smart locks that work with a gateway use short-range wireless communication between the lock and a small gateway hub plugged into your home, which then connects to the Internet to enable remote app control. Wi-Fi smart locks have a built-in Wi-Fi radio and connect directly to your home network without a separate hub. Understanding which type you have matters when evaluating its specific risks.

Are Smart Locks Safe? The Honest Answer

Smart locks are safe for residential use when they are built with robust encryption, certified hardware, and thoughtful design — and when the homeowner follows basic security practices. In many ways, smart locks are more resistant to common break-in tactics than traditional keyed locks. Lock picking, key duplication, and bump key attacks are all irrelevant to a keypad or fingerprint-based entry system. There are no keys to copy and no tumblers to manipulate.

That said, internet-connected devices do introduce a category of risk that purely mechanical locks do not face: digital vulnerabilities. A traditional padlock cannot be hacked remotely. A Wi-Fi smart lock theoretically can, though the likelihood of a targeted attack on a residential smart lock is quite low compared to opportunistic physical break-ins. Most residential burglaries involve kicking in a door, breaking a window, or exploiting an unlocked entry — not sophisticated cyber intrusions. The risks are real, but they should be understood in context, not exaggerated.

Real Security Risks to Know About

Before addressing solutions, it helps to understand the actual threat landscape for smart locks. Here are the five risks that genuinely matter for residential users.

1. Wireless Signal Interception

Smart locks that communicate wirelessly can, in theory, have those signals intercepted by someone with specialized equipment within close physical range. Researchers have demonstrated this with certain older or lower-quality devices. However, reputable locks use AES-128 encryption, which makes intercepted data essentially unreadable to an attacker even if they capture it. If you are buying a smart lock, verifying that it uses AES encryption is one of the simplest checks you can do.

2. Brute-Force Code Guessing

Keypad codes can be guessed if they are short, predictable, or left at the factory default. A four-digit code using a date like "1234" or "0000" offers almost no protection. Most quality smart locks address this by locking out further attempts after a set number of wrong entries, making automated or repeated guessing impractical. Worn keypads can also reveal which digits are used most often, which is why rotating access codes periodically is a good habit.

3. App and Account Vulnerabilities

For locks that connect to an app, a compromised phone or a weak account password is a potential attack vector. If someone gains access to the app on your phone, they could remotely unlock your door. This is why enabling any available two-factor authentication, using a strong unique password for the associated account, and keeping your phone's operating system updated are all meaningful steps. App-based access is powerful, but it makes your phone and your account credentials part of your home's security perimeter.

4. Battery Failure and Lockouts

Smart locks are battery powered. If the battery dies completely and there is no backup access method, you could be locked out of your own home. This is less a "security risk" in the traditional sense and more a reliability concern, but it matters in real-world use. Quality locks provide low-battery alerts well in advance through the app or an audible beep, and the best designs include a physical key override or an emergency power port as a last resort.

5. Physical Tampering

Smart locks, like all locks, can be physically attacked. A lock rated too low for its application or installed in a weak door frame offers limited protection regardless of its digital features. ANSI/BHMA grading is the standardized measure of a lock's physical strength and durability. Grade 3 is the established standard for residential applications; Grades 1 and 2 target high-traffic commercial environments. For a home front door, a Grade 3 certified lock meets the appropriate residential benchmark.

How to Mitigate Smart Lock Security Risks

Most of the risks above have straightforward, practical responses. None of them require technical expertise. Here is what makes the biggest difference:

• Use a strong, non-obvious access code. Avoid birthdays, sequential numbers, or anything that could be guessed. Use at least six digits, and change it if you have shared it with someone who no longer needs access.
• Enable auto lock. Most quality smart locks let you configure auto lock so the door locks itself automatically after a set interval — typically configurable between 10 and 180 seconds. This eliminates the risk of accidentally leaving your home unlocked.
• Keep firmware and app software updated. Manufacturers patch security vulnerabilities through updates. Skipping updates leaves known weaknesses open. Enable automatic updates where available.
• Secure your home Wi-Fi network. For any internet-connected lock, a strong Wi-Fi password and a router with current firmware are essential. Your lock's security is partly a function of your network's security.
• Choose a lock with local data storage. Locks that process and store credentials on-device rather than sending them to the cloud reduce exposure to third-party data breaches. Fingerprint and biometric data should stay on the lock, not on a remote server.
• Maintain a physical key backup. For any smart lock with keypad-only or app-based entry, keeping a physical key backup means a dead battery or a connectivity issue does not leave you stranded outside.
• Assign temporary or time-limited codes for guests. Rather than sharing your primary code, use a guest code that can be deleted when no longer needed. This keeps permanent access credentials tightly controlled.

What to Look for in a Safe Smart Lock

Not all smart locks are built equally. When shopping, these are the criteria worth prioritizing:

• AES encryption for any wireless communication — this is non-negotiable for internet-connected models.
• ANSI/BHMA Grade 3 certification or higher, which confirms the lock meets tested physical durability and strength standards for residential use.
• Local data storage for biometrics — fingerprints processed and stored on the lock itself, not sent to a cloud server.
• Multiple backup entry methods — at minimum, a physical key override so battery failure never means a lockout.
• Low-battery warnings delivered through the app or an audible alert before the battery reaches zero.
• Auto-lockout after failed attempts — this stops brute-force code guessing cold.
• Regular firmware update support from the manufacturer, ideally delivered through the companion app.
• A manufacturer with direct engineering control over their products, so security flaws can be patched quickly rather than waiting on a third-party OEM.

The brand behind the lock matters as much as the lock's feature list. A company that designs, engineers, and manufactures its own hardware can respond to security issues directly. OEM resellers who rebadge generic hardware often have no ability to push firmware fixes or even confirm what components are inside the device.

How Veise Approaches Smart Lock Security

Veise is a vertically integrated smart lock company — meaning we design, engineer, and manufacture our own locks rather than reselling generic hardware under a different label. That distinction matters for security: when a vulnerability is identified, our engineering team can address it directly. We have been in the lock industry since 1988, and every lock in our lineup reflects that accumulated experience in physical hardware design, not just app development.

All Veise smart locks are ANSI/BHMA Grade 3 certified, which is the recognized residential standard. Our locks are compatible with standard wood doors (1-3/8" to 2" thickness) and require full lock replacement — not an overlay on an existing lock. That means the entire locking mechanism meets our quality standard, not just the electronics added on top.

For homeowners concerned about data privacy, Veise locks store fingerprint data locally on the device itself — no Internet account required, no biometric data leaving the lock. Fingerprint recognition happens in under 0.3 seconds using an on-device AI chip, and the template built from enrollment (captured eight times to ensure accuracy across different angles and pressure) never leaves the hardware. There is no subscription fee and no cloud dependency for core lock functions.

Our product lineup covers a range of security needs and budgets. For those who want straightforward, offline security, our keypad deadbolt locks offer keypad code access plus a physical key backup, with fingerprint available on select models — no app, no network, no complexity. For interior doors, secondary access points, or situations where a full deadbolt is not needed, our keypad latch locks provide code-based entry with a simple knob or lever form factor.

For homeowners who want remote access — whether you are a parent who wants to check when your kids got home, or a property owner managing a short-term rental — remote control requires a smart lock, not a keypad deadbolt or keypad latch model paired with a gateway. Our Smart Locks w/ G1 pair with the G1 gateway for remote app control and include fingerprint, key fob, and physical key backups as standard across the entire line, along with multilingual voice prompts (English, Spanish, and French) and a USB-C emergency power port. Our Smart Locks w/ G2 add Apple Watch unlock and web portal access for those who want more connected flexibility, in both fingerprint and non-fingerprint configurations.

For the most seamless connected experience without a separate gateway, our Wi-Fi smart locks connect directly to your home network and support remote app control, Alexa and Google Assistant voice commands (via the lock's built-in Wi-Fi), fingerprint, keypad code, and a physical key backup. Even when Wi-Fi is down, app control continues to work locally as long as you are within short-range wireless distance. The Wi-Fi lineup includes the Touchscreen Wi-Fi Smart Lock (VE027 series) and the Push-Button Wi-Fi Smart Lock (VE012W series) — both use an 8 AA battery design for stronger signal and a longer-lasting power reserve than the more common 4 AA setup. Voice control on Wi-Fi smart locks works directly through the lock's built-in Wi-Fi; on Smart Locks w/ G1 or G2, voice assistant integration works through the paired gateway.

For interior doors, office spaces, or any application where a smart lock is not needed, we also offer a full range of mechanical locks — knobs, levers, and deadbolts built on the same hardware quality standards. All Veise products are priced between $30 and $180 with no subscription fees, install with a screwdriver in about 15 minutes, and are backed by US-based phone and email support.

Final Thoughts

Smart locks are safe for residential use — and in several important ways, they are safer than the traditional locks they replace. They eliminate key duplication, resist lock picking, and give you real-time visibility into who is accessing your home. The digital risks that come with internet-connected models are genuine, but they are manageable with the right lock, proper setup, and basic maintenance habits.

The most important thing you can do is choose a lock from a manufacturer that controls its own hardware and actively supports its products with firmware updates. From there, strong access codes, regular battery checks, and keeping software current cover the vast majority of the risk. For most families, the practical security gains from switching to a quality smart lock far outweigh the concerns.

Frequently Asked Questions

Can smart locks be hacked?

Yes, theoretically — but the risk is much lower than many people assume. Reputable smart locks use AES encryption, which makes intercepted wireless signals effectively unreadable. The more realistic risk is a compromised phone or weak account password rather than a sophisticated remote hack. Keeping your app updated, using a strong account password, and securing your Wi-Fi network address the most common attack vectors.

Are smart locks safer than traditional locks?

For many common threats, yes. Smart locks are immune to lock picking, bump key attacks, and key duplication — which account for a meaningful share of residential intrusions. They also provide features traditional locks cannot offer, like auto lock, access history, and remote monitoring. The trade-off is that internet-connected models introduce digital risks that traditional locks do not have. A quality smart lock with strong encryption and physical backup access is generally at least as safe as a traditional deadbolt, and more convenient in everyday use.

What happens if the smart lock battery dies?

A dead battery can prevent electronic entry, but a good smart lock design ensures this never means a full lockout. Most models send low-battery alerts through the app or an audible beep well before power is exhausted. All Veise smart locks include a physical key override. Select Veise models — the VE017 series (Smart Lock w/ G1) and the VE027 series (Wi-Fi Smart Lock) — also include a USB-C emergency power port, so you can connect a portable battery pack to power the lock long enough to enter using your keypad code.

Do smart locks need Wi-Fi to work?

It depends on the lock type. Keypad deadbolt locks and keypad latch locks operate entirely offline — no Wi-Fi needed. Smart locks paired with a gateway use short-range wireless communication between the lock and the gateway, which connects to your network. For full remote access from outside the home, an active Internet connection is needed. However, even when Wi-Fi is down, app control continues to work locally as long as you are within short-range wireless distance of the lock. Wi-Fi smart locks also support local keypad and fingerprint entry at all times, regardless of network status.

Do smart locks store my fingerprint data securely?

On quality smart locks, fingerprint data is processed and stored on the lock itself using an on-device AI chip. The data never leaves the device and is not sent to any cloud server or third-party account. This is an important distinction to check when evaluating any smart lock — some lower-quality or cloud-dependent models route biometric data through external servers, which introduces privacy risk. Veise locks store all fingerprint templates locally on the device, with no Internet account required for fingerprint functionality.

Do smart locks void home insurance?

In most cases, installing a smart lock does not void your home insurance policy. Some insurers may view smart locks favorably as an added security measure. It is always worth checking with your provider before making changes, as policies vary. Most standard homeowner insurance policies do not specifically exclude smart locks.

What ANSI/BHMA grade should a residential smart lock be?

ANSI/BHMA Grade 3 is the established standard for residential applications. It meets the durability and strength requirements of normal home use. Grades 1 and 2 are designed for high-traffic commercial settings like office buildings, hotels, and public facilities — not a higher "quality tier" for homes, just a different target application. For a front door or interior door in a residence, Grade 3 certification is the appropriate benchmark to look for.