Level 3 · Mission 14 · 8 min
The source ladder
Technical review: this is a testable lesson, not a competency certificate. Use fictional or public information only.
Pause before choosing a tool
Sources closer to the responsible primary party or original data are better for critical facts.
Order sources for verifying a product's minimum age.
- 1Official terms or help center
- 2Developer disclosure in an official app store
- 3Independent professional review
- 4Anonymous social-media comment
Attempted: made a judgment Evidence shown: correct here Transfer shown: correct in a new scenario