I've seen a lot of people asking about this online, and the short practical take is: you should be extremely skeptical of any 'nude' images being passed around unless they come from a clearly credited, reputable source.
There are two separate things to watch for. One is editorial or artistic photoshoots published by recognized magazines or photographers, which sometimes include tasteful nudity and are usually accompanied by credits, photographer names, and publication metadata. The other is leaked or manipulated images — those can be malicious, illegal, or deepfakes. To tell the difference, look for clear photographer credits, a publication name, and a timestamp from a known outlet. If something is circulating on anonymous forums or social media without any provenance, assume it’s not verified. I always lean toward protecting people’s dignity first; chasing potentially non-consensual content is not worth it. Personally, I prefer enjoying an actor’s performances and interviews rather than hunting down dubious images — it feels better and keeps things above board.