Mashable notes that they did contact the company about the issue, and they are aware of it, and on the case.

Users who encounter the worm are encouraged to change their passwords and contact Twitter.Security issues continue to plague not only Twitter, but social media in general. According to a study from Russell Herder and Ethos Business Law, time on social networking sites has increased by 73 in the past year. Another study recently released by AVG and CMO Council found that social network uses are more vulnerable to security risks than nonusers.