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資料視覺化與知名行動通訊APP之安全性疑慮

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October 31, 2014
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 資料視覺化與知名行動通訊APP之安全性疑慮

台大資管系 Innovation Café

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Shouko

October 31, 2014
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Transcript

  1. 資料視覺化與 知名⾏行動通訊APP之安全性疑慮 翔⼦子 @ Innovation Café, NTU IM Fall 2014

  2. About Me 虞翔皓 (翔⼦子) 台⼤大資管系 B02 台⼤大開源社 副社⾧長 興趣: Web,

    Security 網站: http://shouko.tw

  3. Mobile Instant Messaging App Market 調查機構 Ovum 預測 經⾏行動通訊App傳送的訊 息數將由2013年的27.5兆

    則成⾧長到71.5兆則 year messages (in trillion) Ovum: “Social Messaging” Apps Not Just a Fad, Will Reach Two Billion User Mark by End of 2014 http://www.trutower.com/2013/11/29/ovum-instant-messaging-app-market-growth-2013-and-2014/

  4. “Chat with random strangers” Apps

  5. “Chat with random strangers” Apps

  6. About BeeTalk

  7. • 由泰國發跡，總部設於新加坡 • 四個⽉月 達到 1000萬 使⽤用者 About BeeTalk

  8. About BeeTalk

  9. https://www.youtube.com/watch?v=IaKAGd4qq7g • 台灣上架⾸首⽉月使⽤用者數量達 200 萬 • ⽬目標年齡族群 18 ~ 25

    歲 • 使⽤用者性別⽐比 4:6 • ⼤大規模⾏行銷廣告 About BeeTalk

  10. Live Demo

  11. Privacy Concerns about Location Based Services

  12. Inspiration Where When Who

  13. Live Demo

  14. Observation

  15. Observation • 觀測期間約⼀一個⽉月 • 每四⼩小時⼀一班 • 約 15 個景點

  16. Observation • 獲得了 ~190K 筆⽤用⼾戶資料 • 獲得了 1.55M 筆座標資料

  17. Live Demo

  18. Analytics 性別⽐比 7 : 2

  19. Analytics

  20. Future • 更多過濾條件 • 更多呈現⽅方式 • 更有效率的搜尋 • ⾃自動化採集資料

  21. Suggestions • 降低精度 • 修剪傳送的 location data • 添加 random

    offset ⾄至資料 • local database 加密處理 • 使⽤用 geohash 編碼

  22. One more thing

  23. One more thing