If you want tackle advice on common types of crisis that can happen to people (malware, kidnap etc) feel free to check out our free open source app Umbrella. It's about 110k words, 40+ lessons on best practices, in 7 languages. You can look for it on the app stores or find out more (https://www.secfirst.org)
Thanks, I'll check it out. Does the app work offline too in a situation where the crisis also includes lack of internet connection? (eg. natural disasters or places without reliable internet coverage)