Last month the UK's Centre for Data Ethics and Innovation published what they call a "Snapshot Paper" with a useful overview of Deepfakes and Audiovisual Disinformation. The 20 page publication includes definitions and about deepfakes and shallowfakes and outlines issues and concerns. It can be found here in pdf: https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/831179/Snapshot_Paper_-_Deepfakes_and_Audiovisual_Disinformation.pdf
It is also linked from this webpage (which links to two other reports at time of writing, including one on smart speakers and voice assistants: https://www.gov.uk/government/publications/cdei-publishes-its-first-series-of-three-snapshot-papers-ethical-issues-in-ai?123
No-one is going to take this infolit talking cat for a deepfake, but I generated it here and thought it was rather cute.