Hackers have infiltrated the database of online job seeker site Monster, the site disclosed Thursday. According to a statement by the site, those involved set up a server that was accessing contact information of job seekers through a compromised login of one of its employer clients. The rogue server has since been identified and shut down, Monster said. Information that may have been disclosed was limited to names, addresses, phone numbers and email addresses.

The exact number of those affected is not yet known, although Monster will contact those affected as needed. “ Protecting our users from malicious activity is one of Monster's top priorities. Regrettably, opportunistic criminals are increasingly using the Internet for illegitimate purposes. This problem spans the Web, particularly impacting high profile, heavily trafficked websites that serve a variety of users on a global basis,” it said in a statement.