Office 365 Security Guide
Click here to download the PDF.

Compare Office 365 Plans
https://products.office.com/en-us/business/compare-more-office-365-for-business-plans

Exchange Hybrid Configuration Tutorial
http://techgenix.com/using-office-365-hybrid-configuration-wizard-part1

Setting up Federation (ADFS)
https://blogs.technet.microsoft.com/canitpro/2015/09/11/step-by-step-setting-up-ad-fs-and-enabling-single-sign-on-to-office-365/

Office 365 Identity Authorization Information
http://www.interlink.com/blog/entry/active-directory-federation-services-adfs-vs-password-sync

Litigation on hold
http://www.networkworld.com/article/3079099/cloud-computing/doing-ediscovery-litigation-hold-and-addressing-journaling-in-office-365.html

Office 365 DLP Overview
https://support.office.com/en-us/article/Overview-of-data-loss-prevention-policies-1966b2a7-d1e2-4d92-ab61-42efbb137f5e?ui=en-US&rs=en-US&ad=US&fromAR=1

Microsoft Policy for Storing Cloud Data
https://www.microsoft.com/en-us/trustcenter/security/encryption

Office 365 ADFS Firewall Exemption
http://www.markc.me.uk/blog/files/Office365PortalLogon.html

Office 365 Secure Score
https://support.office.com/en-us/article/Introducing-the-Office-365-Secure-Score-c9e7160f-2c34-4bd0-a548-5ddcc862eaef?ui=en-US&rs=en-US&ad=US

Office 365 Staged Migration Tutorial
https://support.office.com/en-us/article/Perform-a-staged-migration-of-email-to-Office-365-83bc0b69-de47-4cc4-a57d-47e478e4894e#createendpoint

Office 365 Cutover Migration Tutorial
https://support.office.com/en-us/article/Cutover-migration-to-Office-365-9496e93c-1e59-41a8-9bb3-6e8df0cd81b4

Bit Titan's Mailbox Migration Tool
https://www.bittitan.com/products/migrationwiz/mailbox-migration

ShareGate's SharePoint Migration Tool
https://en.share-gate.com/sharepoint-migration