Now for the real work to begin: How to use PowerShell to get the right information on your SQL Servers. It's via the Get-Service cmdlet.

A survey by renowned database hacker David Litchfield has found a whopping 492,000 Microsoft SQL and Oracle database servers directly accessible to the Internet without firewall protection.

The full list of SQL Server 2016 SP2 improvements can be found in this Knowledge Base article. Microsoft is recommending a reboot after installing SP2.