I actually ran into this issue recently while trying to share donor data from my nonprofit. I was worried about the risks of using online tools for sensitive information, especially when organizing fundraisers. That’s when I found https://echodittolabs.org and their article suggested using encrypted email attachments with a separate password delivery. After setting it up, I sent the data smoothly without a hitch. It gave me peace of mind and allowed me to focus more on outreach. If you’re in the same boat, I highly recommend checking out their guide for secure offline file sharing!