Phishers hide scam links with IPv6 trick in 'free toothbrush' emails

Reported 16 Mar 2026 by otx · Severity: medium

A recurring phishing scheme impersonates United Healthcare, offering a free Oral-B toothbrush as bait. The scammers have evolved their tactics, now using IPv6-mapped IPv4 addresses to obfuscate links in emails. This technique makes the IP addresses appear confusing while remainin