After months of high-profile hacks, Twitter has announced new features to keep accounts more secure.
Twitter, Tumblr, and Pinterest data—users' emails, phone numbers, and Twitter handles—was made vulnerable in the attack.
Despite early speculation that China was behind recent hacks of Twitter, Facebook and Apple accounts, the culprit is actually a hacker gang based in Eastern Europe.
While some accounts had been compromised, Twitter informed a large number of accounts that were not affected.
Also compromised was the account of one of the site's former writers, now with Wired.
Meet the so-called "ethical hackers" who help Twitter squish bugs and patch up holes.