I am currently in the process of creating a bot for my personal use using your platform. As part of this, I anticipate storing confidential and sensitive personal information in the bot's knowledge base. Could you please clarify the security measures in place to ensure that this information is solely accessible to me and the designated bot users? I want to ensure that this data remains confidential and is not accessible by the BotPress admin or your team. Additionally, are there robust security layers in place to prevent any potential leaks of my personal and confidential information?