Did you install Sennheiser HeadSetup and HeadSetup Pro software? If yes, please go here and follow the instructions carefully to remove this serious security threat.
What is the consequences of not updating? Basically, a hacker can go in between you and a secure website (e.g. your Internet banking website) and fool you that it is secure by giving you the green padlock in the address bar of your web browser. Also, a hacker can send you a malware that pretends to be from a trusted software publisher (e.g. Microsoft, Google).
Please contact us if you need help in removing this security threat.