SSL

SSL, or Secure Sockets Layer, was an early method for encrypting the connections between a web browser and a website server. Think of it like a secure tunnel for your information, preventing others from easily peeking at what you're sending or receiving online. This is crucial for things like online shopping, banking, or logging into accounts, ensuring your passwords and personal details remain confidential.

While SSL was groundbreaking for its time, it has largely been replaced by a more robust and secure successor called TLS (Transport Layer Security). However, the term 'SSL' is still often used colloquially to refer to these secure connections in general, even when TLS is technically what's being used. When you see a padlock icon in your browser's address bar and 'https://' at the beginning of a website address, it means that either SSL or, more commonly, TLS is protecting your connection.

Using SSL/TLS helps protect against various threats, such as eavesdropping and tampering. It also verifies that you are connected to the legitimate website you intended to visit, rather than a fake one trying to steal your information. It's a fundamental part of keeping the internet safe for sensitive transactions and private communications.