Which items can be used to remind customers of information security?

The selection of data backup reminder as the correct answer highlights its critical role in maintaining information security. Regular data backups are essential for ensuring that data can be recovered in the event of a security breach, accidental deletion, or hardware failure. By reminding customers to back up their data consistently, organizations help mitigate the risks associated with data loss and ensure that essential information remains accessible and intact.

While the other options address important aspects of information security, they are not as directly impactful on the overall strategy of data protection as the reminder for data backup. Reminders about account soft-out, password updates, and log protection are significant but are more focused on individual components of cybersecurity practices rather than the holistic approach of safeguarding data integrity through regular backups.