AP CSP Day 52: For Each Loops
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Practice Question
A fitness app collects step count, heart rate, sleep data, and GPS location. Its privacy policy states data may be shared with "third-party partners." Which of the following are valid privacy concerns?
I. GPS data over time could reveal a user's home address, workplace, and daily routines.
II. Health data combined with identity information could be used by insurance companies to adjust premiums.
III. The phrase "third-party partners" is intentionally vague and prevents users from giving truly informed consent.
All three are valid concerns. I: Continuous GPS tracking reveals sensitive location patterns including home, work, and frequent destinations. II: Aggregated health and location data creates detailed profiles that could enable discriminatory practices by insurers or employers. III: Vague privacy language prevents users from understanding who receives their data, undermining informed consent.
A) Statement II is also a valid privacy concern — data aggregation across categories creates powerful profiles. C) Statements II and III are also valid. D) All three statements identify real privacy risks, not just III.
Students underestimate the risk of data aggregation. Individual data points (steps, heart rate, location) may seem harmless alone, but combining them creates a comprehensive profile with significant privacy implications.
On AP CSP, privacy questions often involve data aggregation — combining multiple types of data to create detailed profiles. Consider what different data types reveal when combined, not just individually.
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