Security of custom data set in branch.io link
Is custom data set in branch.io link at the time of link creation publicly available to all users?
If not, Is it linked to the branch api-key and is only visible to applications with that key?
The Branch API key is a public key that is open. In all cases, we highly discourage users from embedding any sensitive data in the Branch links as it is not secure. Branch links are designed to work as links on the web i.e open. However, you can encrypt the data at your end, embed the hash in the Branch links, and then decrypt the hash when Branch delivers the data inside the app. Let me know if you have more questions. Thanks!