Russian national Yevgeniy Aleksandrovich Nikulin was sentenced to 88 months in prison in the United States for hacking LinkedIn, Dropbox, and Formspring in 2012. Nikulin used data stolen from Linkedin to launch spear-phishing attacks against employees at other companies, including Dropbox. The hacker stole roughly 117 million user records, including usernames, passwords, and emails. The data stolen by Nikulin were available on the cybercrime underground between 2015 and 2016, they were offered for sale by multiple traders.”]
Source: https://securityaffairs.co/wordpress/108960/cyber-crime/russian-hacker-nikulin-sentence.html