Here’s an article from WP White Security written by Robert Abela which I thought you might find of interest.

WordPress backup files and old unused files typically contain a wealth of sensitive information. When stored onsite such files can easily be discovered and downloaded by malicious hackers. Hackers use the information they contain to craft an attack against your website.
The post The Security Risks of Storing WordPress Backup Files & Old Files Onsite appeared first on WP White Security.

Related posts:
How to Restrict Access to WordPress files With htaccess
WordPress Backup Blueprints to Backup Your WordPress Manually
Automatic WordPress Backup | BackupBuddy Plugin Review

To read more head to https://www.wpwhitesecurity.com/wordpress-security/store-wordpress-backup-files-old-revision-files-offsite/

Till next time,
D