Secure Chatbot that will not scrape data and send

Hello again. As a side project, I am starting to look into an AI chatbot that I can input data from my company’s environments that will not leak any sensitive data back to OpenAi or other provider. I am a rank novice both to AI usage, and also my job at the company, so I am probably not explaining myself super clearly. I don’t have much of a budget, as it would be personal funds until they accepted my idea or not, and I would like it to have access to the internet. I would like the Chatbot to be able to perform code review, aws functions/ automation, and infosec review. This may not be possible, so this is why I’m reaching out. Thanks so much