Is your Joomla!-based website secure?

Joomla! is one of many excellent resources you can use to create a great website.  Like any other software - open source or not - there can be vulnerabilities.  And, if you are thinking 'my website won't be compromised' or 'why would anyone want to hack my website?' then you need to read this now.

How can you know if your Joomla! website is secure?  What should you do to keep it secure?  Here are some resources you should start with.  This is not an endorsement as much as a starting point.

Books

Joomla! Web Security by Tom Canavan  - Available through Packt Publishing, Amazon.com and others.

Online Information

Joomla! Administrator's Security Checklist - provided by the Joomla developer team.

Joomla! Security Center - A starting point for detailed information on Joomla! security.

http://www.joomlaexploit.com/ - A current listing of issues and vulnerabilities.  It would be more helpful if it was searchable or could be ordered by columns.  This site is owned by the same Connecticut-based group behind JoomlaScanner.com.

Website Scanning

www.JoomlaScanner.com - This group in Connecticut, USA is providing a fee-based scanning service.