The GrubHub crypto scam sends fraudulent emails mimicking official GrubHub addresses, promising 10x Bitcoin returns via a fake ‘Holiday Crypto Promotion.' Victims are tricked into sending funds to scammer wallets; always verify directly with GrubHub to avoid losses. Emails originate from domains like merry-christmas@b.grubhub.com, spoofing legitimate GrubHub merchant communications. Scammers claim 30 minutes left to [...]