Building a secure BLE smart lock solution requires more than just device connectivity. Bluetooth Low Energy (BLE) technology offers convenience, but it must be supported with strong security layers to prevent unauthorized access and cyber threats. This blog highlights common BLE smart lock challenges such as insecure pairing, weak authentication, session attacks, and data interception. It also explains how a multi-layer security approach helps ensure safe device communication through encryption, secure key exchange, and device verification. Ideal for anyone involved in IoT app development and connected device product engineering.