Smart lock is an electronic and mechanical locking device that opens wirelessly with authorised users' authentication, which can be conducted through a smartphone application, a wireless key fob, or biometric recognition. These locks are often part of a broader smart home ecosystem, enhancing security and providing convenient access control. They integrate advanced technologies such as encryption and secure channels to prevent unauthorised access and tampering. Smart locks can be connected to the internet, allowing for remote access, real-time monitoring, and the integration with other smart devices for enhanced functionality like voice activation through virtual assistants or triggering other actions within the home automation system. Their installation varies from DIY solutions, which retrofit existing deadbolts, to complete replacements of traditional lock hardware. This digital evolution in locking mechanisms represents a shift towards more interconnected and remotely manageable home security systems.