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One of Joomla's great strengths is the massive extension library available to Joomla

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Web sites.

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There is always some extension out there that's available to you to add to

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your Web site, and if you don't find what you want, you can always write your own extension.

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However, as great is it is to install a ton of extensions on your Web site, you

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are also creating for yourself additional maintenance

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you need to be very diligent about completing.

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And most notably, that is you need to make sure that your Joomla

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extensions are updated, and are kept up to date, just the same way you're going to keep Joomla

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up to date.

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Hacking into a Joomla

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Web site is unfortunately not all that uncommon, and in fact, all open source

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content management systems have issues with hackers.

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Hackers frequently get in through bad username and password combinations

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that are easily guessed, like admin and admin, or they might get into your

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Web site, because your content management system is out of date.

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So you're running an old version of Joomla,

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an old version of WordPress, an old version of Drupal. And the third way that

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they can get in, and particularly in your Joomla

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site, is that you let your extensions go out of date.

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If you're not keeping your extensions up to date, you run the risk of the same

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security issues cropping up that might crop up in Joomla over time.

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You need to make very sure that your extensions are up to date.

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Now, in the process of building a Joomla

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Web site it's very common to go to the Joomla!

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Extension Directory, download a ton of extensions, and try them out in your Joomla

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site,

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and I encourage that. Go download a whole bunch of stuff, try it all out, see

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what you like, see what works for you, see what has a good user interface, and

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makes life easier for your client.

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But when you're done building your Web site, and you have finished installing all

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of those extensions, get rid of the ones that are not in use. You need to

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uninstall extensions that you're not going to use, number one.

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Number two, the extensions that you're going to keep, you need to make

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sure they're up to date. So Joomla

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has a way of helping you out with this a little bit.

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Here on the control panel, down here at the bottom, we have a note here

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indicating that All extensions are up-to-date. I have no reason not to believe

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that, because I just downloaded these things 10 minutes ago, and installed them on my Joomla

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site.

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I'm fairly sure they're up to date.

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Even though Nicholas is famous for updating Akeeba Backup many, many times a

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month, I'm relatively sure he hasn't rolled out a new version in last 10 minutes.

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If I have an extension that goes out of date, the theory is that this will

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indicate that there are extensions that I need to upgrade, and it will tell me

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that I have some updates that are available.

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And if I click this link, this will take me to a screen where those updates will be listed.

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Now, notice I said in theory.

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In theory, because this is relatively new functionality that's included in Joomla.

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We have it in Joomla! 2.5,

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and we have it here in Joomla! 3.0.

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But in order for this to be effective, Joomla's third-party extension developers

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must integrate their extensions with Joomla's framework here, so that those

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extension updates, as they're available, will show up here in this updating

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interface, and not all of the extension developers have done this yet.

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So unfortunately, this icon here on the control panel about the extensions are

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up-to-date may give you a very false sense of security over time.

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What I would recommend is this; as new versions of Joomla

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are released, what I would recommend you do is go visit all of the extension

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developers for the Web site that you've built, and double-check to make sure that

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they have not released new extensions as well.

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Update all of your extensions at the same time you update your copy of Joomla.

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It's a convenient way to remember. It's going to happen about once every four

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to six weeks or so, which is at a good time frame to make sure that things are up to date.

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Most of the developers also have a newsletter, or Twitter feed, or Facebook page,

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or something that you can subscribe to that will also tell you when there are

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updates available. At least, most of the reputable developers will do this.

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So, just because it says All extensions are up-to-date doesn't necessarily mean its true.

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Trust that little icon, but verify.

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I would not hesitate when you update your copy of Joomla that you go and

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check out to make sure that your extensions are up to date as well, and then

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update them if required.