To minimize the impact of harms like Phishing Malware Ransomware, change the design of File/Link Sharing.
Intervention:

Warn Before Risky Action

Definition: Use signals about affinity and content to occasionally warn the user about what they're about to see/download/visit.
Intervention Flavors:
Speedbump Content Analysis
Reversible:
Easily Tested + Abandoned
Suitability:
General
Technical Difficulty:
Hard

It would really need to not be overused.

Is something missing, or could it be better?
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