Using out of date software is the leading cause of website compromise, so keeping your environment patched and up to date is one of the most important responsibilities of a website administrator. It’s not uncommon to employ the use of custom code on websites, and spend small fortunes on software developers to tailor their website just the way they want it. However, the usage of customised code can sometimes inadvertently lock a website administrator into using an out of date CMS installation long after its expiry date, particularly if they no longer have access to their old developer (or sufficient funds to hire a new one).

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