Abstract: The disclosed computer-implemented method for password breach monitoring and notification may include (i) detecting a set of authentication credentials for a user, (ii) generating a one-way hash for a password associated with the authentication credentials, (iii) selecting a hash prefix including a subset of data in the hash, (iv) sending the hash prefix to a backend service for matching with a set of hash suffixes associated with known compromised passwords, (v) determining that a breach has occurred based on the password associated with the authentication credentials being compromised when the hash prefix matches a hash suffix in the set of hash suffixes, and (vi) performing a security action that protects against an additional breach associated with the compromised password. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: An integrated, online approach to handling aspects of customer promotions can include a promotional management module for use by a client vendor. The promotional management module can integrate with the client vendor's existing online commerce portal and/or with a social networking service or the like to provide a user with an enhanced shopping experience by presenting one or more offers that the user can redeem via e-commerce (e.g. online selection and payment), in-person (e.g. at a physical location of the client vendor, or via other approaches.