free encryption tool

https://securemessagingservicespark.alderbrief.com/posts/what-to-look-for-in-a-secure-messaging-service

If you need to keep your files safe without spending a dime, a free encryption tool can be a lifesaver. It scrambles your data so only someone with the right key can read it, which is handy for sensitive documents or private messages. Most are simple enough to use even if you're not a tech wizard—just point, click, and let it do its thing. Just make sure you pick one from a trusted source so you're not trading one risk for another.