Yahoo confirms previous breach affected all 3 billion users October 3, 2017 by admin Tweet Yahoo today updated its estimation of the number of accounts affected by a 2013 leak to include all 3 billion users, up from 1 billion earlier, which was already considered the largest hack ever. Read more… Neowin Related Posts:China is investing around $2 billion into country's…Facebook will not notify the 500 million users…TSMC confirms partner affected by LockBit…Over 1.5 billion Facebook records possibly for sale…Verizon is selling off Yahoo! and AOL for $5 billion