US-CERT states that all computer users, from home users to professional information security officers, should back up the critical data they have on their desktops, laptops, servers, and even mobile devices to protect it from loss or corruption. Saving just one backup file may not be enough to safeguard your information. To increase your chances of recovering lost or corrupted data, follow the 3-2-1 rule:
3 – Keep 3 copies of any important file: 1 primary and 2 backups.
2 – Keep the files on 2 different media types to protect against different types of hazards.
1 – Store 1 copy offsite (e.g., outside your home or business facility).
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This link from DataONE provides a list of data backup best practices. This link provides best practices for creating and documenting a backup policy. If you want to back up the data on your PC, here are five ways you can do so. Each method has its pros and cons. This NIST Special Publication defines a seven-step contingency planning process that an organization may apply. This paper summarizes the pros, cons, and security considerations of backup options for critical personal and business data.
This Handbook provides a step-by-step guide to assessing a small manufacturer’s information systems against the security requirements in NIST SP 800-171 rev 1. The purpose of this publication is to provide procedures for assessing the CUI requirements in NIST Special Publication 800-171. This NIST Special Publication helps organizations in designing, developing, conducting, and evaluating test, training, and exercise events.