Abstract: Measurements of biometric information of a user are obtained over time, such as blood glucose measurements. These biometric measurements are typically obtained by a wearable biometric information monitoring device being worn by the user. These biometric measurements are used by various different systems, such as a computing device of the user or a biometric information monitoring platform that receives biometric measurements from multiple different users. The biometric measurements are used for various security aspects, such as one or more of part of multi-factor authentication of the user, generating security keys (e.g., connection keys, encryption keys), identifying biometric measurements associated with different user identifiers but the same use, and protecting biometric measurements so as to be retrievable only by a recipient associated with an additional computing device, and so forth.