Browser reports that the website is infected
To investigate the problem, use the Google service called Safe Browsing and check the site status (this is also the tool that Firefox uses to check the website for phishing).
Safe Browsing: Site Status
Most often, the website is identified as dangerous because it has harmful content or contains links to harmful resources. If such content and links are deleted, the site status will change and the warning in the browser will go away.
How to fix the website
The full guide on this matter can be found on Google’s Webmaster Guidelines page. Follow the step-by-step instructions. As the harmful software was eliminated, you need to request another website check using Google’s Webmaster Tools or the website StopBadware.org.
Easy yet efficient advices on how to protect your website from hacks:
- always keep your CMS up to date as new versions come out;
- use extensions or plugins only from official websites;
- use non-conventional user logins. Don’t even think about such names as Admin or Administrator;
- use only complex passwords featuring both uppercase and lowercase letters, numbers and special characters;
- take advantage of official safety update plugins for your CMS.
How to set up notifications on vulnerability detection for my website
Register your website at Google’s Webmaster Tools. This way Google will promptly notify you, if it detects that your website has been hacked.
Alternatively, if you are not registered at Google’s Webmaster Tools, you can create one of the following mailboxes at your domain:
Google sends notifications to these standard email addresses.