Hi Nicho, Andy (CTO Sourcetable) we have gone to extreme lengths to protect your security. We use a form of escrow encryption in maximum security mode to only send data through at the time of you using it. Data that you have selected in your spreadsheet or called upon in the context of the conversation can be used for mcp conversations. If you are really worried about sensitive data, you can always create a new sheet and only include data that you are 100% sure of. MCP is generally outbound (you choose what to ask) so unless you've directed the AI to do something that the MCP endpoint requires you should be ok.