Yahoo

Yahoo also owns sites such as Flickr and Tumblr.

Transparency

From 2013 Yahoo began releasing simple figures about the number of requests made for user data (not including requests made to Tumblr)

Government data requests, United Kingdom
Period No Data Found Rejected Only NCD Disclosed Content Disclosed Total Government Data Request Total Government Specified Accounts
2013 Q1 + Q2 146 456 (27%) 760 347 1709 2832
2013 Q3 + Q4 156 435 679 417 1687 2488
2014 Q1 + Q2 167 575 578 88 1408 2037
2014 Q3 + Q4 106 989 475 0 1570 2240
2015 Q1 + Q2 143 1153 649 0 1945 4827
2015 Q3 + Q4 209 834 657 0 1700 3535
Government removal requests, United Kingdom
Period Requests Items specified Compliance rate
2014 1 4 100%
2015 2 10 50%

Source: Yahoo [1]

References