Which of the following is a strategy to protect data in transit?

Using a VPN (Virtual Private Network) is a highly effective strategy for protecting data in transit. A VPN creates a secure and encrypted connection between a user’s device and the internet, ensuring that any data transmitted over this connection is protected from interception and eavesdropping. This is particularly important when using public Wi-Fi networks, where data can be easily captured by malicious actors. The encryption provided by a VPN makes it exceedingly difficult for unauthorized users to access or read the data being transferred.

Other strategies listed, while important for overall cybersecurity practices, do not specifically focus on protecting data in transit. Regular backups are crucial for data recovery but do not address the security of data while it is being transmitted. Data corruption checks are designed to detect corruption of data storage rather than provide security during transmission. Firewalls are essential for controlling network traffic and protecting networks from unauthorized access; however, they do not encrypt data in transit, which is key for safeguarding sensitive information while it moves between systems.