One of my favorite things to watch on YouTube is this guy who gets into all kinds of “unbreakable” locks. Since discovering his channel, I’ve seen him break into some of the most dependable locks. But what about smart locks? These nine were able to be hacked in less than 10 seconds.
1. August Smart Lock Pro: Vulnerable to Signal Replay Attacks
The August Smart Lock Pro will cost you about $200 (give or take, depending on whether there is a sale). Spending that type of money on a lock would make you think it would keep your belongings safe. However, cybersecurity experts discovered it is vulnerable to signal replay attacks when the lock isn’t updated regularly. A signal replay attack means that a hacker could intercept the signal from your phone and replay it to unlock your door. It’s easy to let your firmware go without being updated, making this hack more common than not (unfortunately).
2. Tapplock One+: Opened in Seconds with a Screwdriver
The Tapplock One+ gained attention for its fingerprint unlocking feature and futuristic design. Unfortunately, it became infamous when hackers opened it with a simple screwdriver and some light prying—no fingerprint or app required. Security researchers were able to bypass the mechanism without any technical expertise. Even worse, its Bluetooth security was weak, making it a double risk. A flashy design doesn’t mean strong smart lock security.
3. Kwikset Kevo: Broken Open with a Simple Tool
Kwikset’s Kevo lock marketed itself as a pioneer in smart home security, but a physical flaw gave hackers a clear path. A paperclip and a little patience were all it took to force it open. Additionally, it lacked end-to-end encryption during early firmware versions, allowing hackers to intercept unlocking commands. Homeowners who thought they were upgrading were actually downgrading their protection. Even well-known brands can drop the ball on security.
4. Ultraloq U-Bolt: Hacked via Bluetooth Spoofing
This model boasts a sleek design and multiple access options: code, fingerprint, and app. Unfortunately, it was found to be susceptible to Bluetooth spoofing, where a hacker tricks the lock into believing your phone is nearby. In lab tests, the spoofed signals unlocked the device almost instantly. Without robust encryption and signal authentication, Bluetooth-based locks are often the weakest link. Smart lock security demands more than just sleek functionality.
5. Samsung SHP-DS510: Bypassed with a Magnet
Samsung’s digital locks are sleek and widely used in apartments and condos, but one model, the SHP-DS510, had a shocking flaw. A simple neodymium magnet placed near the latch area was enough to disengage the lock. No codes. No hacking. Just magnets. It’s a harsh reminder that even major tech giants can overlook basic vulnerabilities in smart lock design.
6. Yale Assure SL: Exposed with Network Sniffing Tools
Yale is a trusted name in traditional locks, but their smart models haven’t always been bulletproof. The Assure SL model was found to be susceptible to packet sniffing—essentially, hackers capturing the data sent between your phone and the lock. That allowed them to recreate unlock codes in under 10 seconds in some cases. Wi-Fi-enabled locks must prioritize encryption, or they risk becoming digital doors left wide open. Even brands known for reliability can overlook crucial cybersecurity practices.
7. Schlage Sense: Glitch Allowed Easy Brute-Force Attacks
Schlage’s smart locks are known for durability, but one model came with an unfortunate vulnerability. During a software glitch, the lock failed to limit the number of incorrect code attempts. This opened the door—literally—for brute-force attacks where hackers rapidly tried different codes until one worked. A simple fix could have been a lockout feature after several failed attempts. Smart lock security isn’t just about features—it’s about preventing the obvious exploits.
8. Defiant Smart Lock: Weak Encryption Made Hacking Easy
This budget-friendly model became popular for its affordability and easy installation. However, its low price came with an even lower level of protection. Experts found the encryption key used between the lock and the mobile app was predictable and could be cracked in seconds. Once hacked, full access was granted without any notification to the homeowner. When it comes to smart lock security, sometimes you really do get what you pay for.
9. Genie Aladdin Connect (Garage Smart Lock): Accessed with Default Credentials
Though technically a garage entry system, the Aladdin Connect functions similarly to a smart lock. It shocked users when reports surfaced that it could be accessed remotely using factory-default login credentials. Many users never changed these credentials, making it a goldmine for hackers. In tests, attackers gained control in seconds. This is a reminder that even connected garage locks need strong passwords and user setup awareness.
Don’t Let Convenience Compromise Your Safety
Smart locks are designed to make our lives easier, but they shouldn’t leave us vulnerable in the process. As these nine examples show, not all smart locks are created with true security in mind. From simple tools to advanced spoofing, attackers are finding faster ways to bypass what we think protects us. Before installing—or trusting—a smart lock, make sure it’s been vetted by independent cybersecurity experts and always keep your firmware up to date. When it comes to smart lock security, vigilance is your best defense.
Do you use a smart lock at home? Have you ever checked how secure it really is? Share your thoughts—and any close calls—in the comments below.
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