Encrypt individual files before upload, or use containers like VeraCrypt. Turn on biometric or passkey-based multifactor for all accounts. Store recovery codes offline. Share emergency access through delegated contacts or sealed envelopes, balancing privacy with safety, so a hospital visit or evacuation does not strand decision-makers without authority.
Adopt the 3-2-1 pattern: three copies, on two media, with one offsite. Add immutable or object-locked backups to defend against ransomware and accidental deletion. Schedule restore tests, not just backups. Document exact steps, timing, and credentials required, so recovery is muscle memory, not a panicked experiment.