The Chinese Internet giant is paying nearly $215 million for 15 percent of JD.com, China's second-largest e-commerce company behind Alibaba.
Company's CEO and COO were not involved in the spike in fraud but resigned to take responsibility for the "systemic breakdown" in the company's "culture of integrity."
Yahoo has sold its direct stake in Alibaba.com for pre-tax proceeds of $150 million. The company still maintains 28 percent indirect ownership in the trading site.
International Federation of Phonographic Industries says the site, controlled by Alibaba.com, lost its appeal in a piracy lawsuit it filed against the company.
The partners will have a strong hand in setting the course for the Chinese e-retailing giant by picking its directors.
Originally announced in April, Yahoo Mail's exit means that Chinese users must use another service, such as Alibaba's Alimail.
Alibaba has amended its S-1 filing and has selected the New York Stock Exchange for its IPO, and will list under the stock symbol BABA.
Alibaba's upcoming US market debut means employees are due to cash in, and the company is taking steps to help them manage the windfall.
Case designs popping up in Hong Kong and online add to the pile of evidence that a skinnier slate is in the works.
Quixey believes that app stores represent just version 1.0 of how we find apps. It wants to do better.