"The isn't a phone number," she explained, her voice like grinding gravel. "It’s a rotating frequency. It exists for ten seconds, verifies the packet, and then vanishes into the ether. It’s the only way to keep the Syndicate from tracking your pings."
: If you lose access to the virtual number (especially "burner" or free ones), you may never be able to log back in if you are logged out. Security Vulnerabilities