The social network Twitter announced on Friday that about 250,000 of its users had been the victim of cyber attacks similar to those brought against companies and American media.
Hackers have managed to get the names, email addresses, passwords and other data from approximately 250,000 users, said the security director of Twitter, Bob Lord, the blog network.
"This attack was not the work of amateurs, and we believe it was not an isolated incident," said the head of Twitter, based in California (western United States).
"The attackers were extremely sophisticated, and we believe other companies and institutions have recently been attacked in the same way," he added.
"We stumbled on an ongoing attack and we have to stop a little later," he reported, noting have invalidated the passwords of accounts potentially affected and asked users to create additional .
Mr. Lord spoke of a "rise in cyber attacks against large-scale U.S. business media and technology."
U.S. newspapers New York Times and Wall Street Journal reported this week that their computers and computer systems were hacked, pointing to the Chinese government.
The head of Twitter has also warned against the use of Java software. The U.S. Department of Homeland Security was called in early January to stop its users to use it, because its vulnerability is exploited by