End-to-end encryption provides stronger security than HTTPS alone. It encrypts messages on the sender's device before transmission so that only the recipient can decrypt it with their private key, rather than data being encrypted in transit only. BunkerMail uses this method, generating unique AES keys for each message and attachment, encrypting the keys with the recipient's RSA public key so only they can decrypt it, ensuring the information is accessible by the end users and not others like servers.

1. End-to-End Encryption Explained Why HTTPS is not enough October / 25 / 2010 GlobalCrypto.com

2. Old: SFTP Plaintext File Encrypted Link (HTTPS/SSL) SFTP Server

3. HTTPS with DB Encryption Plaintext File Encrypted Link(HTTPS) AES Key for DB Encryption Encrypted Files in DB

4. Senders RSA Key-Pair Receivers RSA Key-Pair Senders Encrypted File in DB Other Files encrypted in DB Messages are encrypted on senders machine then Sent to BunkerMail. Files are downloaded to receivers machine, then decrypted using his unique keys. Each user has unique keys which are stored on their computer End-to-End Encryption

5. BunkerMail advantages Every message and attachment have Unique AES keys for encryption AES keys are sent to receiver encrypted with receiver’s RSA public key Information is controlled by RSA keys held by end users on their machines