Using someone’s voice, face or artistic style without asking. It is now easy enough that it happens constantly, from cloned voices in scams to imitations of living artists. The law is catching up unevenly, and the harm lands on individuals who generally have no practical means of pursuing it.
Technical view
Legal routes vary and include personality and publicity rights, passing off, data protection where biometrics are involved, and newly enacted provisions on digital replicas in some jurisdictions. Style is generally not protected by copyright, which is why artist claims usually rest on training data use rather than output similarity. Practical mitigations include consent registries, provenance marking and platform takedown processes, all of which lag the volume.
Related
Part of AI Terminology Index, section: Society and Impact.