[单项选择]The simple act of surrendering a telephone number to a store clerk may not seem harmful—so much so that many consumers do it with no questions asked. Yet that one action can set in motion a cascade of silent events, as that data point is acquired, analyzed, categorized, stored and sold over and over again. Future attacks on your privacy may come from anywhere, from anyone with money to purchase that phone number you surrendered. If you doubt the multiplier effect, consider your E-mail inbox. If it’s loaded with spam, it’s undoubtedly because at some point in time you unknowingly surrendered your E-mail to the wrong Web site.
Do you think your telephone number or address is handled differently A cottage industry of small companies with names you’ve probably never heard of—like Acxiom or Merlin—buy and sell your personal information the way other commodities like corn or cattle futures are bartered. You may think your cell phone is unlisted, but if you’ve ever ordered a pizza, it mi
A. Compile telephone directories for businessmen.
B. Collect and sell personal information to make a profit.
C. Trade commodities like corn on the market.
D. Crack down crimes like stealing private information.

[单项选择]The simple act of surrendering a telephone number to a store clerk may not seem harmful—so much so that many consumers do it with no questions asked. Yet that one action can set in motion a cascade of silent events, as that data point is acquired, analyzed, categorized, stored and sold over and over again. Future attacks on your privacy may come from anywhere, from anyone with money to purchase that phone number you surrendered, ff you doubt the multiplier effect, consider your e-mail inbox. If it’s loaded with spare, it’s undoubtedly because at some point in time you unknowingly surrendered your e-mail to the wrong Web site.
Do you think your telephone number or address is handled differently A cottage industry of small companies with names you’ve probably never heard of—like Acxiom or Merlin—buy and sell your personal information the way other commodities like corn or cattle futures are bartered. You may think your cell phone is unlisted, but if you’ve ever ordered a pizza, it m
A. many customers didn’t keep their privacy confidential.
B. it is harmful to give a store clerk a telephone number.
C. careless disposal of personal information can be harmful.
D. customers should inquire its use when giving telephone numbers to others.