Not a virus though, a worm...
People are able to use it to XSS attack, basically post some javascript on twitter.com1 that will be executed. Mostly this javascript is then making you post another tweet without realising it, passing on the original code. This is a neat twitter worm, not actually a virus. Some of the javascript may redirect you to sites that do try to infect your computer. Look out!
js: Programming language of the web, mostly how I earn a wage.
⬅️ Do you want to sell your picture of the Pretty Things Trish? :: Infrared repeater works well ➡️
Paul Clarkeʼs weblog - I live in A small town. Married to Clare + dad to 2, I'm a full stack web developr, + I do mostly js / Node, some ruby, python, php ect ect. I like pubbing, parkrun, restaurants, home-automation + other diy stuff, history, genealogy, Television, squirrels, pirates, lego, and TIME TRAVEL.