Which security measure is effective for data in transit?

Using encryption is an effective security measure for data in transit because it protects the data as it travels over networks, making it unreadable to unauthorized users. When data is encrypted, it is transformed into a format that is not easily understood without the appropriate decryption key. This means that even if the data is intercepted during transmission, it would be nearly impossible for an attacker to decipher or use the information without access to the key.

Encryption is particularly important for protecting sensitive information such as personal data, financial records, and proprietary business information from eavesdropping or theft during transfer between systems or across the internet. Protocols like SSL/TLS and VPNs (Virtual Private Networks) utilize encryption to secure data in transit, ensuring confidentiality and integrity.

Other options, such as shredding documents, are relevant for data at rest and focus on physical security rather than protecting information during transmission. Implementing zoned security concerns the organization’s infrastructure and network segmentation to reduce risks but does not specifically secure data on the move. Establishing firewalls helps control incoming and outgoing network traffic to prevent unauthorized access but does not protect the data itself while it is being transmitted. Therefore, encryption specifically addresses the requirements of securing data in transit effectively.