Final answer:
Encryption is the security measure designed to protect communication systems against fraudulent transmissions. It converts plaintext information into a coded form that can only be read by authorized parties using cryptographic algorithms and decryption keys.
Step-by-step explanation:
The security measure designed to protect communication systems against fraudulent transmissions is encryption. Encryption is the process of converting plaintext information into a coded form that can only be read by authorized parties. It ensures that data transmitted over networks or stored in databases remains secure and inaccessible to unauthorized individuals.
Encryption uses cryptographic algorithms to scramble the data, making it unreadable without the corresponding decryption key. This ensures that even if an attacker intercepts the communication, they cannot understand or manipulate the transmitted information.
For example, when you visit a website that uses the HTTPS protocol, your browser and the website engage in a process called SSL/TLS encryption. This encryption protects your sensitive information, such as login credentials and credit card details, from being intercepted and exploited by hackers.