(New information on the status of the Twitter hack repair added to the article.)

NEW YORK (

TheStreet

) -- Twitter has successfully patched the "XSS attack," according to the

Web site's status blog

. The repair is complete and the site is back up and running.

This morning Twitter users encountered technical difficulties after hackers utilized a flaw in the site's coding.

Hackers put a "mouseover bug" on the site which launched pop-ups and third-party sites when users slid their mouse over the area. Even though the site was infiltrated "non-maliciously," many users were worried that the bug could have been used to spread viruses.

Meanwhile, applications such as Tweetdeck, Hootsuite and the Blackberry Twitter Application were not affected by the bug.

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-- Written by Theresa McCabe in Boston.

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