First, An Apology
If you received a direct-message (known as a DM) on your twitter account from mine (that would be @JM_Buckley) please please please disregard it, and I sincerely apologize. My account was hacked and has been used to send spam.
The message links to a rather dumb video that is, in effect, a twitter virus. It’ll pass the same DM from your account if you open it.
I believe it is not dangerous, but it is a nuisance. If you did click on the link, you’ll probably need to change your twitter account password and you’ll be unable to send tweets for a few hours, until your get back below the “tweet caps” for messages.