Thanks for your reply.
The message is a WordPress message, but it seems the two Security Plugins are the culprit – though am unsure.
The plugins are: WordFence and iTheme Security
However some of the Deleted, Modified and Added files gave me this clue.
For example, see this “Modified File”
wp-content/plugins/wordfence/tmp/configCache.php
See “Files Added:
wp-content/uploads/ithemes-security/backups/backup-anabolic-steroids-fo-1424598561-IKY8w.zip
See “Filed Deleted:
wp-content/uploads/ithemes-security/backups/backup-anabolic-steroids-fo-1424425471-QlSowfv5.zip