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PCPD News 私隱專員公署通訊•
Issue no. 28
Mark Your Diary
活動日誌
Resources Updates
資源快訊
Statistics
統計
Glossary
詞彙
資料來源
Sources
：
The Economist 2012 outlook
Privacy Aware, Vol 11 No. 3 Summer 2012-2013, the Office of the Victorian Privacy Commissioner
whatis.techtarget.com/definition/3Vs
接獲投訴個案
（
2013
年
1
月至
9
月）
：
1,433
宗
Number of complaint
cases received
(January – September 2013)
:
1,433 cases
接獲查詢數目
（
2013
年
1
月至
9
月）
：
20,267
宗
Number of enquiry cases
(January – September 2013)
:
20,267 cases
大數據
Big Data
「大數據」這個當時得令的詞語，一般用
來形容大得不能以傳統方法輕易地儲存
或分析的數據集。大數據通常有下述特
徵：「大量」
(Volume)
、「高速」
(Velocity)
及「多元」
(Variety) (
合稱
3Vs)
。
「大量」是指機構收集及產生大量數據。
「高速」指現時由感應器或機器產生及
分析數據的速度。而「多元」則指被收集
及可能使用的數據的繁多種類，包括文
字、語音、視像、網絡日誌等。
企業無可避免要面對大數據的挑戰。以
下是兩個有關大數據的例子：
全球電子數據量於
2005
年是
130
艾位元
組
(exabytes)
1
，而在
2010
年已達到
1,227
艾位元組。預計
2015
年會上升至
7,910
艾位元組。
擁有超過十億個活躍用戶，每
日有超過
500
太位元組
(terabytes)
的數據
（包括文字、視像及相片）被上載。
資料的數碼化令資料的儲存、分享、搜
尋、分析及複製變得非常快捷和便宜。
隨著電腦運算能力的提升及數據被移到
「雲端」，情況會更甚，這令大數據的威
力和潛力大得難以想像。
大數據對資料私隱保障及規管亦帶來巨
大挑戰。有人呼籲把世界各地的資料私
隱標準及原則融合，或甚至標準化，以
助國際間管理大數據。
最近，有人建議在這個3Vs模式中再
加上其他定義特性，包括「變異性」
(variability)（指數據的意義會隨著情況而
轉變），及「價值」(value)（因為大數據經
分析後可得出資訊及知識）。
"Big data" is a buzzword used to describe
datasets so large that they cannot be easily
stored or analysed by traditional methods.
Typically big data has the following
characteristics: high volume, high velocity
and high variety (3 "Vs").
Volume refers to the massive amounts
of data collected and generated by
organisations. Velocity refers to the speed
at which the data can now be generated
and analysed by sensors or machines.
Finally, variety means the vast array of
different types of data that is collected
and potentially used – from text to audio,
video, web logs and more.
It is only inevitable that businesses are
facing with the big data challenge. Here
are two examples of how much data is
out there:
The quantity of global digital data reached
130 exabytes
1
in 2005 then 1,227 exabytes
in 2010. It is now predicted to rise to
7,910 exabytes in 2015.
PCPD in action
公署動態
Case in Brief
個案摘要
Data Protection in Property Management
物業管理的資料保障
Mark Your Diary
活動日誌
Resources Updates
資源快訊
Statistics
統計
Glossary
詞彙
Technology Updates
科技新知
Facebook had more than a billion active
users and each day more than 500
terabytes of data (including text, video and
photo) is being uploaded.
The fact that the data collected is digital
makes storage, sharing, search, anaylsis
and copying very fast and very cheap.
It is even more so now that much of the
computing power required, as well as the
data, is being moved into 'the cloud'. This
makes the power and potential of the big
data almost unimaginably vast.
Big data poses great challenges for
data privacy protection and regulation
too. There have been calls for the
harmonisation, or even standarisation,
of data privacy standards and principles
around the world to help manage big data.
More recently, additional Vs have been
proposed for additional to the 3 Vs model,
including variability (the meaning of data
would vary according to context) and
value (as information and then knowledge
would be induced from big data upon
analysis).
1
一艾位元組等於百萬的三次方(1之後加18個零）個位元組(quintillion bytes)。
An Exabyte is one quintillion (1 followed by 18 zeros) bytes.
0
100
200
300
400
500
0
3,000
6,000
9,000
12,000
15,000
範疇
TOPIC*
範疇
TOPIC*
宗
CASE
宗
CASE
與互聯網相關
Internet Related
人力資源管理
Human Resources
查閱資料要求
Data Access
Request
身份證號碼╱
副本及身份識別符
ID card number/copy &
other personal identi ers
直接促銷
Direct Marketing
工作地點監察
Workplace
Surveillance
身份證號碼╱
副本及身份識別符
ID card number/copy &
other personal identi ers
查閱資料要求
Data Access
Request
人力資源管理
Human Resources
直接促銷
Direct Marketing
77
81
106
131
449
2012
40
84
92
63
100
332
845
1,486
1,809
12,523
470
994
1,875
2,309
1,177
2013
*
最多投訴範疇
Most Complaint Cases
2012
2013
*
最多查詢範疇
Most Enquiry Cases
0
100
200
300
400
500
0
3,000
6,000
9,000
12,000
15,000
範疇
TOPIC*
範疇
TOPIC*
宗
CASE
宗
CASE
與互聯網相關
Internet Related
人力資源管理
Human Resources
查閱資料要求
Data Access
Request
身份證號碼╱
副本及身份識別符
ID card number/copy &
other personal identi ers
直接促銷
Direct Marketing
工作地點監察
Workplace
Surveillance
身份證號碼╱
副本及身份識別符
ID card number/copy &
other personal identi ers
查閱資料要求
Data Access
Request
人力資源管理
Human Resources
直接促銷
Direct Marketing
77
81
106
131
449
2012
40
84
92
63
100
332
845
1,486
1,809
12,523
470
994
1,875
2,309
1,177
2013
*
最多投訴範疇
Most Complaint Cases
2012
2013
*
最多查詢範疇
Most Enquiry Cases