Whenever things are good and you have something worth preserving, there will be ants at the picnic. There will be vultures who try to nip at the edges, crabs who try to use what you’ve built and climb over you, or frauds who attempt to imitate you.
The positive upshot – if you’re seeing any of that, it’s a sign of your success!
Sure, you need to make the effort to insulate yourself from such threats. But their existence alone is cause to be proud of yourself. You’re a target because you’ve done well.