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Dear customer. We are calling you from your computer maintenance company that we have detected some suspicious activities in your computer and firewall that installed in your network is stopped working, and your network is no longer a safe at the time. So, please give us a call back to fix your computer issue on 802-500-1768.
If you don't tell the other person on the line what the message is about (you just say "you got a message, told me to call back") it's a refund scam