@zande I've looked into this, but it doesn't concern me too much. I'm not a professional. I don't make a living from my pictures. And, I don't plan to.
Basenji's are something I REALLY enjoy. Part of the enjoyment is sharing mine with other people. If a person wants to they can strip the photo of all EXIF data. There are tools all over to help do that. A person can also Watermark their photos, which serves as a reminder to people that the photo "may" be copyrighted. The most important protection is to the register the photo with the appropriate agency ensuring that it's copyrighted. In the US, a violation entitles the copyright owner something like $25,000 per instance, plus attorney fees.
There's a lot of things in life that concern me. This just isn't one of them. But, I understand not everyone feels that way and that's perfectly ok too.