Sharepoint Security : Permission, Patching, Trust Level, SSL Testing 

I have been using SharePoint for years and have been reported numerous Sharepoint Security Issues through Pen Tests and Vulnerability scan on the platform.
SharePoint sites, which are delivered from SharePoint Online or through On-Premises Sharepoint, are subject to various security risks. Especially for organization hosting sensitive information.
SharePoint Security concepts we will check on Part 1 of this video are
1) Managing SharePoint Permissions
2) SharePoint Patching
3) Lockdown Mode
4) Web.Config Trust Level
5) SSL Testing
6) Access Request Setting