A man with a thick Asia-Pacific/Indian accent called four times telling me my network firewall was down and that my computer is at risk. After repeatedly asking for a company name he said he was with Grant Tech an authorized Microsoft technical support. I’ve asked him to stop calling me and he continues to call me making a case for me to give him my IP address.I looked up the company online and when you call their number, you have three choices, Technical Support, Customer and Operator. When you choose any option, they go to voice mail.