SSH (Secure Shell) is a protocol that creates an encrypted connection between two systems, enabling them to exchange data securely over unsecured connections.
Think of it as sending a padlocked box made of bulletproof steel through the post. While somebody might be able to get their hands on the box without permission, doing so would be useless, because the tough material and padlock mean they wouldn't be able to open it and find out what's inside.
Similarly, while somebody might be able to intercept data transferred over SSH, they wouldn't be able to make sense of it without the encryption key. Read more