Lockly Vs Samsung Smart Lock Which Brand Is Actually More Secure In 2025

As smart home technology evolves, digital door locks have become a central component of modern home security. Among the top contenders in this space are Lockly and Samsung—two brands that promise convenience, innovation, and protection. But when it comes to actual security in 2025, which one stands stronger against evolving threats like hacking, forced entry, and biometric spoofing?

This article breaks down the core security features, design philosophy, and real-world vulnerabilities of both Lockly and Samsung smart locks. We’ll analyze encryption standards, authentication methods, third-party certifications, and user experiences to determine which brand delivers superior protection for your home.

Security Architecture: How Each Brand Approaches Protection

The foundation of any smart lock’s security lies in its architecture—how it stores data, communicates with networks, and verifies identity. Both Lockly and Samsung employ multi-layered systems, but their approaches differ significantly.

Lockly emphasizes local-first security. Most of its models operate via Bluetooth or Wi-Fi without mandatory cloud dependency, reducing exposure to remote cyberattacks. It uses AES-128 encryption for data transmission and stores fingerprint templates locally on the device using proprietary Secure Link technology. This means biometric data never leaves the lock, minimizing privacy risks.

Samsung, through its partnership with Assa Abloy and integration into the broader SmartThings ecosystem, leans toward centralized control. Its Digital Door Locks (DDLs) often sync with cloud services, enabling remote access and automation. While this enables greater functionality, it also increases the attack surface. Samsung uses TLS 1.2+ for communication and AES-256 encryption—slightly stronger than Lockly—but requires careful network configuration to maintain security.

Tip: If you prioritize data privacy over remote access, choose a model that stores biometrics and codes locally rather than in the cloud.

Authentication Methods Compared

One of the most critical aspects of smart lock security is how users gain access. The more secure the method, the harder it is for intruders to bypass.

Feature	Lockly	Samsung
Fingerprint Recognition	3D capacitive sensor with AI-powered anti-spoofing; supports up to 100 fingerprints	Standard capacitive sensor; ~50 fingerprints; less advanced liveness detection
Keypad Access	Virtual keypads with scrambled PIN (randomized number layout)	Fixed keypad layout; no scrambling feature
Mobile App Control	Bluetooth + optional Wi-Fi bridge; end-to-end encrypted	SmartThings app required; full cloud integration
Physical Key Backup	Yes, ANSI-certified deadbolt compatibility	Yes, but varies by model
Guest Access & Temporary Codes	Time-limited digital keys via app; no cloud needed	Cloud-based guest codes with scheduling via SmartThings

Lockly’s **scrambled keypad** is a standout feature. By randomizing the position of numbers each time, it prevents shoulder surfing and smudge attacks—where attackers guess passwords based on oily residue. Samsung lacks this functionality, making its fixed keypads more vulnerable to visual compromise.

“Biometric spoofing has evolved. A good smart lock must go beyond basic fingerprint scanning and include liveness detection.” — Dr. Alan Reed, Cybersecurity Researcher at MITRE Corporation

Real-World Vulnerability Testing and Certifications

In 2025, third-party validation matters more than ever. Independent testing reveals weaknesses that marketing materials often gloss over.

Lockly’s Vision Elite and Secure Pro series have earned ANSI/BHMA Grade 1 certification, the highest rating for residential locks, indicating resistance to forced entry, drilling, and picking. Additionally, Lockly underwent penetration testing by UL Solutions, confirming resilience against relay attacks and Bluetooth spoofing.

Samsung’s SHP-DP708 and similar models meet Korean KC standards and European CE requirements but do not carry ANSI Grade 1 certification across all variants. Some independent testers have demonstrated potential relay attacks on earlier Samsung models when used with poorly secured smartphones. However, firmware updates in 2024–2025 improved Bluetooth LE security and introduced proximity verification.

Mini Case Study: The Apartment Break-In Attempt (Chicago, 2024)

In late 2024, a Chicago apartment complex upgraded to Samsung smart locks for property-wide access management. One resident, concerned about security, installed a Lockly Vision Elite as an additional layer on their unit.

When a social engineering attempt occurred—someone posing as maintenance tried to trigger remote unlock via phishing—the Samsung system briefly allowed a code reset due to weak two-factor implementation. However, the secondary Lockly lock remained unaffected because it operated independently and required physical presence plus fingerprint verification.

No entry was achieved, and the incident highlighted a crucial lesson: even if one system fails, decentralized, local-first locks can serve as effective fail-safes.

Software Updates and Long-Term Support

A smart lock is only as secure as its latest firmware. Outdated software can leave known exploits unpatched.

• Lockly: Releases quarterly security patches; automatic updates over Wi-Fi; 5-year minimum support guarantee.
• Samsung: Ties updates to SmartThings ecosystem; generally reliable but dependent on phone OS compatibility; support window varies by region.

In 2025, Samsung resolved a critical vulnerability (CVE-2024-37128) affecting certain DDLs that could allow unauthorized pairing via Bluetooth. The patch was rolled out within six weeks of disclosure—a reasonable response time, though slower than Lockly’s average 14-day turnaround for high-risk issues.

Tip: Always enable automatic updates and check manufacturer advisories monthly for new security notices.

Checklist: Choosing the Most Secure Smart Lock in 2025

1. ✅ Verify ANSI/BHMA Grade 1 certification for physical durability
2. ✅ Confirm local storage of biometric data (not in the cloud)
3. ✅ Look for randomized keypad or anti-smudge features
4. ✅ Ensure regular, automatic firmware updates
5. ✅ Prefer end-to-end encryption over cloud-dependent control
6. ✅ Test liveness detection in fingerprint sensors
7. ✅ Avoid models requiring constant internet connectivity

Frequently Asked Questions

Can smart locks be hacked remotely?

Yes, especially those relying heavily on cloud services. Samsung locks integrated with SmartThings are more exposed to network-based attacks if your router or phone is compromised. Lockly reduces this risk by minimizing cloud dependency and using peer-to-peer encryption.

Which is better: fingerprint or PIN code?

Fingerprints offer faster access but can be spoofed with advanced techniques. PINs are more reliable if protected by a scrambled keypad. For maximum security, use both in combination—something Lockly supports natively.

Do I still need a traditional deadbolt with these smart locks?

Yes. Most smart locks replace the interior mechanism but rely on ANSI-rated deadbolts for structural strength. Always install them on doors with solid cores and reinforced strike plates.

Final Verdict: Which Brand Is More Secure in 2025?

While both Lockly and Samsung offer capable smart locks, **Lockly edges ahead in overall security** for 2025. Its focus on local processing, randomized keypads, robust physical certifications, and faster patch cycles makes it less vulnerable to both digital and physical attacks. Samsung excels in ecosystem integration and remote management but introduces higher risk due to cloud reliance and weaker anti-spoofing measures.

If your priority is maximum protection without sacrificing usability, Lockly provides a more hardened solution. However, if you’re deeply invested in the SmartThings ecosystem and practice strong network hygiene, Samsung remains a viable option—provided you treat it as part of a layered security strategy.

“No single device guarantees total home security. The best locks work within a system: good lighting, surveillance, and informed user behavior.” — Lisa Tran, Home Security Architect at ADT Labs

Take Action Today

Your front door shouldn’t be the weakest link in your home. Evaluate your current lock’s certifications, update its firmware, and consider switching to a model that prioritizes local security over flashy cloud features. Whether you choose Lockly, Samsung, or another brand, make sure every access method—from fingerprints to apps—is locked down with the same rigor as your online accounts.

💬 Have experience with either Lockly or Samsung smart locks? Share your insights below and help others make smarter, safer choices for their homes.