Securing Mobile Devices During Holiday Travel:
https://www.us-cert.gov/ncas/current-activity/2017/12/05/Securing-Mobile-Devices-During-Holiday-Travel
Holiday Traveling with Personal Internet-Enabled Devices:
https://www.us-cert.gov/ncas/tips/ST11-001
Cybersecurity for Electronic Devices:
https://www.us-cert.gov/ncas/tips/ST05-017
See-also:
https://ssd.eff.org/
https://en.wikipedia.org/wiki/Cyber_self-defense