As the server grows and more clients come on board it's becoming evident that some clients (a small minority I might add) simply are not keeping their CMS up to date.

We actively monitor all sites and know which ones are at risk but despite asking repeatedly they still haven't been updated. We also provide video tutorials for them so they can update the CMS themselves if they choose to.

We're considering implementing a procedure that suspends accounts for sites that are deemed a risk to the server and I wondered what others might have done about this themselves...?