Follow ZDNET: Add us as a preferred source on Google. How personal do you get with your chatbot? Does it interpret your lab results? Help you sort out your finances? Offer advice at 2 a.m. when your worries are particularly existential? Without thinking about it too deeply, you might be revealing a whole trove of personal information about yourself, and that could be a problem. At a time when people are increasingly integrating chatbots into their everyday lives, researchers are trying to work out the implications of feeding AI personal information. Also: 43% of workers say they've shared sensitive info with AI - including financial and client data By now, you've likely heard stories of people forging romantic relationships with chatbots or using them as life coaches and therapists. In fact, just over half of US adults use large language models, according to a 2025 study from Elon University. What's more, chatbots are designed to be friendly and keep people chatting -- and talking about themselves.…