The decline of government data requests targeting Yahoo could be due to any number of issues, said Karsten Weide, an industry analyst at the research firm IDC.
Or, "it could just be a fluke," he said.
Yahoo's government data request figures do not include Tumblr, which Yahoo acquired last year. The number of Tumblr data requests at the moment is small: just 194 received in the first half of this year; 462 for all of last year.
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