The phone number of F-Prot Antivirus Customer Service is 354-540-7400. With F-Prot antivirus now being a part of Cyren, all of the F-Prot Antivirus Customer Service is redirected to Cyren customer service. For any information with F-Prot Antivirus products and credit card payments, you will need to send in your queries at and contact the Cyren technical support number for any technical issues that you are facing with F-Prot antivirus software.

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