Ms Purvis has apologised to more than 700 followers
Hundreds of users of the popular web service Twitter may have to change their passwords after an account belonging to an MLA was hacked.
Over 700 users "following" the East Belfast representative Dawn Purvis received a message on Wednesday purporting to be from her.
However the message was sent automatically from her account by malicious software.
The Progressive Unionist MLA has apologised to those affected.
They received a message saying "Hey, is this you?" followed by a link which, when clicked, directed them to a potentially nefarious website.
Those who clicked received a message from Twitter on Friday urging them to change their passwords in case their security has been compromised.
Ms Purvis is one of the latest politicians to be affected by the so-called "phishing" scam.
On Monday, Sinn Fein said an account of Northern Ireland assembly member Barry McElduff had been hacked. A party spokesperson said Mr McElduff had now changed his password.
Last week, the Labour deputy leader Harriet Harman revealed her account had been hacked and fake messages sent in her name, including one to Tory spokesman Alan Duncan.