Vulnerability Identified in the Kwikset Halo Smart Lock

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Connected security devices play an important role in the ecosystem of the modern home. They help residents keep an eye on who’s on or near the premises, track temperature and humidity, and, in general, monitor what’s going on at home when they’re not around. As these devices are packed with digital “eyes” and other sensors, vulnerabilities and logic flaws can leave them under the control of cybercriminals who turn them into espionage tools.

As the creator of the world’s first smart-home cybersecurity hub, Bitdefender regularly audits popular IoT hardware for vulnerabilities that might affect customers if left unaddressed. This research paper, part of a series developed in partnership with Tom’s Guide, aims to shed light on the security of the world’s best-sellers in the IoT space.

ulnerability at a glance

An issue in the companion mobile app can expose sensitive device data, such as authentication token, user info, and the serial number of the smart lock.

Disclosure timeline

  • Nov 09, 2021: Bitdefender contacts the vendor and shares information about the vulnerability
  • Dec 16, 2021: Vendor releases a fix via the Android app update
  • Apr 06, 2022: Bitdefender publishes this report.

Download the whitepaper


While the app update fixes this issue, smart home adopters should constantly monitor IoT devices and segregate them from the main local network.

Additionally, IoT users can use the free Bitdefender Smart Home Scanner app to scan for connected devices, identify and highlight vulnerable ones. IoT device owners should also make sure that they check for newer firmware and update devices as soon as the vendor releases new versions.

To minimize risks of compromise, smart home users should consider the adoption of a network cybersecurity solution integrated into the router, such as the NETGEAR Orbi or Nighthawk routers powered by Bitdefender Armor.