1Her nephew was surprised that free apps still earn money.
2Keiko explained that his attention is the actual product.
3Every search, tap, and pause leaves a small trace.
4Companies combine these traces into detailed profiles.
5The profiles predict what he might buy or watch next.
6He asked whether deleting an app removes the data.
7Usually not, she said, the records stay on their servers.
8Instead, she showed him the privacy dashboard of his account.
9Together they disabled personalized advertising on every account.
10They also reviewed which apps could access his location.
11Three games had permission they clearly did not need.
12He revoked those permissions with visible satisfaction.
13Keiko warned him about quizzes that ask personal questions.
14They are often disguised attempts to harvest answers.
15Security questions deserve the same caution as passwords.
16He now uses made-up answers stored in his manager.
17Finally, she recommended checking old accounts once a year.
18Forgotten accounts remain vulnerable long after we abandon them.
19He admitted the topic felt less boring than expected.
20Keiko smiled and said awareness is the first defense.