Over the last 5 or so years, smart locks have become more and more popular. It’s the move towards digital security and convenience, and we can see a lot of upsides to it. After all, smart locks give homeowners a convenient way to lock and unlock their doors using a smartphone, keypad, fingerprint or even a voice assistant. For some people that’s an absolute game changer. But as locksmiths we see one question come up time and time again – can smart locks be hacked?
The short answer is, yes. Just as any device that’s connected to the internet can be. There’s always some level of risk, so the question should really be how likely is it for your smart lock to be hacked, and what can you do to protect yourself?
How Do Smart Locks Work?
Smart locks don’t use traditional manual locking mechanisms. Instead, they use electronic components to control access. Each model does this in a slightly different way, but they can connect and unlock via:
- Bluetooth
- Wi-Fi
- Zigabee or Z-Wave
- A smartphone app
- Fingerprint recognition
- PIN codes
- Key fobs
Some smart locks will replace your existing manual locks completely, while others work alongside it, allowing you to keep your original key as a backup. On top of controlling entry, a lot of smart locks will let you monitor who enters your home, make temporary access codes to let visitors or tradespeople in, and even lock and unlock your door remotely.
Can They Really be Hacked?
Technically, yes. But it’s very rare!
Most burglars are looking for the quickest, easiest way to gain access to your property. They’ll look for poorly secured doors they can force, or a shabby mechanical lock they can pick quickly. A smart lock provides a long-winded and complicated challenge that goes against the ‘in and out quick’ method they prefer.
That doesn’t mean that smart locks are impossible to attack, but successful hacking is far less common than scare headlines might suggest. And just like any connected technology, their security often depends on how well the device has been designed, and how it’s used by the homeowner.
How Could a Smart Lock be Compromised?
There are a few different ways that a badly protected smart lock could become vulnerable.
Weak passwords: If your smart lock account uses an easy-to-guess password, or one that you use elsewhere, someone could potentially get access to your account rather than the lock itself. This means they’d be able to control your lock and let themselves in and out as they please, and you might not even realise until it’s too late. Using a strong, unique password is the simplest and most effective way to improve security.
Outdated software: Manufacturers regularly release updates to fix bugs can improve security. If you ignore these updates, your smart lock may remain vulnerable to issues that have already been resolved. Keeping both the lock and its companion app up to date is an important part of owning any smart device, including a smart lock.
Unsecured home Wi-Fi: If your smart lock is connected to your home Wi-Fi, then it’s only as secure as your network is. A weak Wi-Fi password or outdated router settings could make it much easier for someone to access any devices connected to the network, including your smart lock.
Cheap or unverified products: Not all smart locks are built to the same standard. Very low-cost products from unknown manufacturers can lack proper encryption, regular software updates or independent security testing. Choosing a well-known brand with a good reputation can significantly reduce potential risks.
Are Traditional Locks Safer?
It might sound like we’re saying smart locks aren’t safe, but that’s not true. Traditional locks have their own weaknesses – they can be picked, snapped, drilled or forced if they don’t meet modern security standards. But a high-quality mechanical lock that’s been properly fitted can offer just as much security as a smart lock. But remember, the security of your doors isn’t just about the locks. It also relies on the quality of the door, the frame, hinges and installation. It’s a whole picture, rather than just the parts.
How Can You Make a Smart Lock More Secure?
If you’re considering installing a smart lock, there are several things you can do to maximise security:
- Choose a reputable manufacturer
- Keep the lock’s firmware up to date
- Use a strong, unique password for your account
- Enable two-factor authentication, if it’s available
- Secure your home Wi-Fi network with a strong password
- Remove access for people who no longer need it
- Check the app regularly for software updates
These small steps can all make a significant difference to your overall security.
So yes, smart locks can be hacked. But so can any other form of technology that isn’t secured properly. If you choose a well-made lock, have it installed properly and keep it up to date, then it can provide the same, if not better security than a manual lock.
If you’re thinking about upgrading to a smart lock, it’s worth taking the time to understand your options rather than choosing the first product you see online. An experienced locksmith like us can help you compare different systems, explain the pros and cons of each, and recommend a solution that’s suitable for your property, lifestyle and budget. Whether you decide a smart lock is the right choice or prefer a traditional high-security lock, getting independent advice can help you make a decision with confidence.