TLS & SSL Protocol: What You Need to Know

TLS is a secure protocol used to protect the traffic between your browser and website. It was developed to improve on the original, insecure SSL protocol. TLS is more secure because it uses encryption techniques that are harder to break. Additionally, TLS is supported by most modern browsers, so it’s always safe to use.

What is TLS?

TLS is an encrypted protocol that’s used to secure communication between two devices. The most common use for TLS is securing your communication with websites and web browsers. It’s also supported by most online services, such as Gmail, Facebook, Twitter, and Amazon Web Services.

TLS And SSL Protocol What You Need to Know
TLS And SSL Protocol What You Need to Know

TLS uses cryptography to protect your data from being intercepted in transit or stolen after it’s been sent. When you visit a website that uses TLS encryption, the website encrypts your data using a key known only to the site and you – ensuring that no third party can read or tamper with your information while it’s in transit.

The security of TLS depends on several factors: the strength of the relationship between you (the client) and the server; how securely each side–the server and client–stores sensitive information; whether either side has access to undisclosed vulnerabilities; who controls which keys are used; etc. To ensure consistent security across all sites using TLS encryption, we recommend using a trusted certificate authority (CA), such as Let’s EncryptTM.

How TLS works

TLS is a security protocol that ensures the privacy of communications between two entities. TLS creates an encrypted connection between the server and the client, protecting their data from interception by third-party attackers. In addition, it helps protect against man-in-the-middle attacks, where someone intercepts and alters traffic as it travels between the parties involved in a communication.

TLS also allows for encrypted connections between the server and client, protecting against eavesdropping or unauthorized access to data transmission. Additionally, since TLS encrypts both sides of the conversation simultaneously, it eliminates information leakage that could occur if one side were to send unencrypted data packets without knowing what was being sent back on the other end of the connection.

What types of encryption does TLS use?

TLS uses two types of encryption: symmetric and asymmetric. Symmetric-key cryptography is simple to implement, but it’s vulnerable to a key breach that could allow attackers to access your data. Asymmetric-key cryptography, on the other hand, provides greater security because each party has a different (rather than duplicated) key.


For TLS to work properly, both the client and the server must support these types of encryption. If one side isn’t using either type of encryption, then communication between them won’t be able to take place securely. So make sure you have installed or updated your applications so they are supporting TLS to keep your data safe!

Is TLS secure?

TLS is a secure protocol that helps protect data from being intercepted in transit between your computer and the website or application you’re visiting. However, there are risks associated with it. TLS can be compromised in several ways, including:

  • The use of weak ciphers (e.g., RC4)
  • Incorrect key lengths (e.g., 128 bits for RSA rather than 256 bits)
  • Insufficient SSL/TLS protection around transmitted data

Even if your site uses the best available security measures, there is always the risk that someone will try to break into it and steal your data. It’s important to always use another security protocol like HTTPS alongside TLS to increase your overall security posture.


TLS is the most common security protocol used on the internet today, and while it may not be perfect, it’s better than nothing. Make sure you read through this blog so that you can protect your website from potential attacks.