Fake techsupport and malware at 844-778-5325
These guys are real bastards,
Installing malware to slow down your pc and then offer to fix your pc
Known warnings and complaints, dozens of these are out there
https://malwaretips.com/resources/1-844-778-5325-microsoft-apple-pop-up-scam.322/
https://www.removingvirusfrompc.com/1-844-778-5325-pop-up-uninstallation-complete-guide-to-get-rid-of-1-844-778-5325-pop-up-completely
https://www.removemalwarevirus.com/steps-to-uninstall-1-844-778-5325-pop-up
https://www.pcmalwaresecurity.com/remove-1-844-778-5325-pop-up-virus-from-computer-in-5-minutes
https://topvirusremoval.com/tag/1-844-778-5325
Time for revenge
https://bobrtc.live/phonebook/dial/18447785325#