A protocol used to control the secure sending of data on the internet is

🔑 Key Points
→ HTTPS:
This stands for "Hypertext Transfer Protocol Secure". It's an extension of HTTP, used for secure communication over a computer network, with communications being encrypted by Transport Layer Security (TLS), or formerly, its predecessor, Secure Sockets Layer (SSL).
This provides a level of privacy and security to protect information being sent between a website and a web browser, making it difficult for unauthorized parties to eavesdrop on the information being exchanged, providing protection against man-in-the-middle attacks. The browsers typically show a lock icon in the URL bar when the session is secure, which means that the data is transmitted encrypted.

🔑 Sub-heading 2:
→ TCP/IP:
This stands for "Transmission Control Protocol/Internet Protocol". It's a suite of communication protocols used to interconnect network devices on the internet.
It helps in defining how data should be packaged, addressed, transmitted, routed, and received at the destination.

→ SMTP:
Standing for "Simple Mail Transfer Protocol", this is a protocol used for the transmission of emails between servers on the internet.
It is the set of rules that the servers follow to transfer emails back and forth. SMTP can also be used by a client to send an email to a server.

→ HTTP:
This stands for "Hypertext Transfer Protocol". It's the foundation of any data exchange on the Web, and is a protocol used for transmitting hypertext over a network like the internet.
It's an application layer protocol designed to transfer information between networked devices but doesn't include any measures to ensure data security, which is where HTTPS comes into play.
HTTP is not secure. So, data sent using HTTP can be intercepted by attackers.