A new survey by Proton, a company focused on digital privacy, reveals that two-thirds of Brits are using artificial intelligence (AI) as a private, judgment-free confidant. Despite this, many people have serious concerns about how their personal data is handled. The survey found that 66% of UK AI users have shared at least one sensitive topic with an AI assistant, such as health, finances, or relationships. However, 64% of respondents are worried that their conversations could be used to create detailed profiles about them, and nearly half (42%) have little or no trust in AI companies to keep their information safe. Eleven percent said they have no trust at all. Despite these concerns, many Brits say AI has significantly influenced their daily lives. Fifty-five percent of respondents believe AI has changed how they make decisions. The survey also highlights that personal finance is the most common sensitive topic discussed with AI, mentioned by 33% of users. Work or career problems followed closely at 32%, while mental health and relationship issues were also frequently discussed. The survey also points to growing fears about how AI might misuse personal information. Fifty-two percent of respondents are concerned that their private conversations could be used to train future AI models, potentially exposing more of their inner thoughts and secrets. Proton has responded to these worries by introducing Lumo, a privacy-focused AI chatbot. Lumo is an open-source alternative to ChatGPT, built with strong encryption to protect user data, similar to the security features of Proton’s email service. To help users understand the risks, Proton launched AI Paper Trail, a tool that visually shows how much personal information can be revealed through a typical AI conversation. Eamonn Maguire, Director of AI Engineering at Proton, emphasized the importance of privacy, stating that AI is learning more about individuals than search engines ever could. He noted that people are sharing deeply personal details about their health, finances, and relationships, and that privacy must be a top priority when designing such technology.