Currently our focus is to keep the website safe proactively. There are a lot of WordPress malware scanners that restore for backups and so on but they actually don't protect the site. I think it's better to monitor and protect the site in advance then work on the consequences.
But back-up's have been requested before too. We will add them to our public roadmap - https://trello.com/b/yNmawdFc/webarx-public-roadmap