Yesterday there was a security update release for Joomla 3 that we have now applied to all the sites we monitor.
The announcement, and info about the security concerns is available on th is link
https://www.joomla.org/announcements/release-news/5693-joomla-3-6-5-released.html
In other news, JCE plugin updates are now managed via the normal Joomla update regime, which is a bonus as they had to be manually monitored and updated previously.
We're happy to help manage your Joomla software updates and monitoring. The usual cost is $125 per annum for business sites that we host. This provides a monthly audit and proactive update when new versions are released. Please enquire here.