If you arrived at work tomorrow and your website was down, your data gone and there was no way to do business, what would your financial loss be? Your website is infected with malware and any visitor to your site would be in potential danger. Hackers had full access and control to your website.
A Website Security Audit is a process that examines your web system for vulnerabilities and loopholes, including the core, extensions, themes, and other infrastructure. A comprehensive web security audit will typically include static and dynamic code analysis, business logic error testing, configuration tests, and so on.
Most websites will encounter a security issue sooner or later. A user may have left their account information somewhere it should not have been, an attacker may be targeting your site, or a plugin may have opened the door to a security breach. A website security audit, regardless of the specific issue, is the best way to detect these types of issues before they cause significant damage.