Disturbing words, aren’t they? Reputedly a comment made by the FBI’s Head of Homeland Security.
What can you do about that risk?
Your first line of defence has to be regular incremental backups of your website stored offsite. That way, you can roll back a site to a backup preceding the hack.
However that`s only part of your defence.
If you have a WordPress site you need to be protecting your website against attack by monitoring its visitors, stopping brute-force login attempts, operating a firewall, hiding login pages and even restricting logins to your IP address and country.
If your site uses plugins, themes and open source software you should ensure you are informed of updates and apply them immediately.
If this all sounds too much for you there are designers and developers, such as wetherbyweb, who offer security and maintenance packages to take care of these tasks for you, leaving you to concentrate on your business.