(no subject)
Jan. 15th, 2008 11:56 amQuote from Schneier's Cryptogram
Other research reaches the same conclusion. Using public anonymous data from the 1990 census, Latanya Sweeney found that 87 percent of the population in the United States, 216 million of 248 million, could likely be uniquely identified by their five-digit ZIP code, combined with their gender and date of birth. About half of the U.S. population is likely identifiable by gender, date of birth and the city, town or municipality in which the person resides. Expanding the geographic scope to an entire county reduces that to a still-significant 18 percent. "In general," the researchers wrote, "few characteristics are needed to uniquely identify a person."
Stanford University researchers reported similar results using 2000 census data. It turns out that date of birth, which (unlike birthday month and day alone) sorts people into thousands of different buckets, is incredibly valuable in disambiguating people.
Today is a good day to set your LJ birthday to 1970.
Other research reaches the same conclusion. Using public anonymous data from the 1990 census, Latanya Sweeney found that 87 percent of the population in the United States, 216 million of 248 million, could likely be uniquely identified by their five-digit ZIP code, combined with their gender and date of birth. About half of the U.S. population is likely identifiable by gender, date of birth and the city, town or municipality in which the person resides. Expanding the geographic scope to an entire county reduces that to a still-significant 18 percent. "In general," the researchers wrote, "few characteristics are needed to uniquely identify a person."
Stanford University researchers reported similar results using 2000 census data. It turns out that date of birth, which (unlike birthday month and day alone) sorts people into thousands of different buckets, is incredibly valuable in disambiguating people.
Today is a good day to set your LJ birthday to 1970.