Methods and systems for automatically unlocking an electronic device via a wearable device may include a first device authenticating a user of a wearable device in response to the user closing a clasp of the wearable device and entering a personal authentication password on the first device; a second device requesting a rolling one-time password (OTP) via a wireless connection to the wearable device in response to the second device detecting that the wearable device is within a predefined physical range, and a user pressing an input key; unlocking the second device in response to the second device receiving the OTP from the wearable device; monitoring a status of the clasp, wherein the status comprises a closed or an open state; and deleting OTP or password key information from the wearable device in response to the processor of the wearable device detecting that the clasp is in an open state.