2) It's a risk for anything that's DNA-based. For example, your data can be used to create false evidence for crimes irrelevant to you. You don't even need to be a target for that. You can just be an entry in a list of available DNA profiles. I'm not sure how much DNA can be manufactured based on full genome data, but with CRISPR and everything I don't think we're too far away either. You can even experience that accidentally because the data is out there and mistakes happen.
3) You can't be famous. If you're famous, you'd be target of endless torrent of news based on your DNA bits. You'd be stigmatized left and right.
4) You can't change your DNA, so when it's leaked, you can't mitigate the future risks that doesn't exist today. For example, DNA-based biometrics, or genome simulation to a point where they can create an accurate lookalike of you. They're not risks today, doesn't mean they're not tomorrow.
There are also additional risks involved based on the country you're living in. So, you might be living in a country that protects your rights and privacy, but it's not the case with the others.