It might not be an actual holiday, but the thought behind World Backup Week is undeniably essential. Keeping backups of your data is important.

Readers worried after Mr. Musk and his team were given access to federal payment systems. Here’s how to back up all your data and documents.

Talk about a secure backup: A Florida startup is testing a method to store important data on the moon as a backup system to Earth. Think of it as a lunar data center. As part of the effort ...