Where can I buy Usdj?

Excuse me, could you please clarify where exactly one might go to acquire Usdj? I've been doing some research and it seems to be a rather niche cryptocurrency, so I'm having difficulty locating a reputable exchange or platform that supports its trading. Would you happen to know of any specific marketplaces or websites where I could safely purchase Usdj? Additionally, are there any particular precautions I should take when buying such a currency to ensure my transaction is secure and my funds are protected? Thank you for your time and assistance.