(SAN FRANCISCO) -- Twitter says it has patched a security hack that created chaos for thousands of the site's users early Tuesday. "We discovered and patched this issue last month," the site said in a statement posted on its blog. The site added, "However, a recent site update (unrelated to new Twitter) unknowingly resurfaced it." The flaw allowed unwanted messages and websites to open in web browsers as users moved their mouses over infected links. Without even a click, users were directed to sexually explicit content and other potentially unsavory websites. "A user noticed the security hole and took advantage of it," the statement said. Earlier this month, the company announced plans to overhaul its existing site layout.
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