Twitter hacked, data of 250,000 users exposed

San Francisco, Feb 2: Twitter said Friday that hackers, in the latest online attack, may have gained access to information on a quarter of a million of its more than 200 million active users.The social media giant said in a blog posting that earlier this week it detected attempts to gain access to its user data. It shut down one attack moments after it was detected.But it discovered that the attackers may have gained access to usernames, email addresses and encrypted passwords belonging to 250,000 users. Twitter has reset the pilfered passwords and sent emails advising users that they'll have to create a new one."This attack was not the work of amateurs, and we do not believe it was an isolated incident. The attackers were extremely sophisticated, and we believe other companies and organizations have also been recently similarly attacked," the blog said. "For that reason we felt that it was important to publicize this attack while we still gather information, and we are helping government and federal law enforcement in their effort to find and prosecute these attackers to make the Internet safer for all users."The hack is the latest high-profile cyber-attack on US media and technology companies recently. The New York Times and The Wall Street Journal reported this week that their computer systems had been infiltrated by China-based hackers.One expert said that the Twitter hack probably happened after an employee's home or work computer was compromised through a vulnerability in Java, a commonly-used computing language whose weaknesses have been well publicized.Ashkan Soltani, an independent privacy and security researcher, said such a move would give attackers "a toehold" in Twitter's internal network, potentially allowing them either to sniff out user information as it traveled across the company's system or break into specific areas, such as the authentication servers that process users' passwords.In a telephone interview Friday, Soltani said that the relatively limited number of users affected suggested either that attackers weren't on the network long or that they were only able to compromise a subset of the company's servers.Twitter is generally used to broadcast messages to the public, so the hacking might not immediately have yielded any important secrets. But the stolen credentials could be used to eavesdrop on private messages or track which Internet address a user is posting from.That might be useful, for example, for an authoritarian regime trying to keep tabs on a journalist's movements."More realistically, someone could use that as an entry point into another service," Soltani said, noting that since few people bother using different passwords for different services, a password stolen from Twitter might be just as handy for reading a journalist's emails.

Twitter hacked, data of 250,000 users exposed

San Francisco, Feb 2: Twitter said Friday that hackers, in the latest online attack, may have gained access to information on a quarter of a million of its more than 200 million active users.The social

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