Backups

Backblaze - The 3-2-1 Backup Strategy
A 3-2-1 strategy means having at least 3 total copies of your data, 2 of which are local but on different mediums (read: devices), and at least 1 copy offsite.

2 of which are local but on different mediums:

at least 1 copy offsite:

Other Backups

Make sure these backups are either in your 3-2-1 Backup Strategy or an equal/better solution.

CryptoParties

Recommend Devices / Hardware

Password Managers

Resources

Secure Messaging

Secure File Storage / Sharing

Security Plan (Risk Assessment / Threat Modeling)

Services

Two-Factor

Updates

Remember to run a BACKUP before Updates to avoid potential data loss!

UEFI / BIOS / Firmware Updates

Apple supplies these updates through their regular update systems.

If a device or program have become Unsupported / End of Life / Obsolete you should fully upgrade/replace ASAP.

VPN

Web Browsing

Web Browser Extensions / Add-ons

Web Browsing: Anonymous