“Mike Bailey, a senior security analyst with Foreground Security of Orlando, Florida, said he discovered the problem, which exploits a widely known vulnerability in Adobe Systems Inc’s Flash programing language.

Bailey said he informed Twitter of the flaw and it could take as little as a few hours to fix by changing the way the site is programed.

Adobe has told programmers how to address the vulnerability, which was first discovered in 2006, he added, but noted the operators of many websites have failed to respond to the warnings from Adobe.”

(Source: Twitter users vulnerable to security flaw | Reuters)