H

Hacker:

An unauthorized user who attempts to or gains access to an information system.

Hash value:

A numeric value resulting from applying a mathematical algorithm against a set of data such as a file.

Hashing:

A process of applying a mathematical algorithm against a set of data to produce a numeric value (a 'hash value') that represents the data. Mapping a bit string of arbitrary length to a fixed length bit string to produce the hash value.

Hybrid cloud:

Hybrid cloud refers to a mixed computing, storage, and services environment made up of on-premises infrastructure, private cloud services, and/or a public cloud—such as Google Cloud Platform (GCP), Amazon Web Services (AWS), or Microsoft Azure.  With regard to security policy, it is important to design and deploy policies that are appropriate for each component of the hybrid infrastructure (e.g. on-premise or public cloud), but also compliment / support the policies deployed across the rest of the infrastructure.