Due the nature of this program it does send clipboard and (or) file content over network WHEN user wish it and only to selected destination.
On Android systems program uses camera access to do "shoot & send" in 1 user's touch.
All transferred data are encoded using AES-128 session key. Sessions key are exchanged between devices using RSA-1024 or stronger. User must confirm visually that fingerprints match on remote device to avoid MITM attack. All networking is working only inside local network without internet access.
No clouds, no remote server are used (except ADs' banners on android systems).
No personal data are gathered or stored except those user manually selected to send to other device (ADs banners on Android may collect some meta-information which is not related to or used by PasteOverNet author(s)).