Description: Data transmission security refers to the measures and protocols implemented to protect the integrity, confidentiality, and availability of information while it is transmitted over networks. In an increasingly interconnected world, where devices and systems constantly exchange data, transmission security becomes crucial to prevent unauthorized access, interception, and data manipulation. This includes the use of techniques such as encryption, which encodes information so that only authorized recipients can access it, as well as authentication, which verifies the identity of users and devices involved in the communication. Additionally, security protocols such as SSL/TLS are employed to secure online connections, ensuring that data sent between a client and a server remains protected. Transmission security is particularly relevant in the context of numerous connected devices exchanging sensitive information, increasing the risk of cyberattacks. Therefore, implementing robust data transmission security measures is essential to protect both users and organizations from potential threats and vulnerabilities.