Every holiday sale starts with a generous offer, whether it is a welcome discount, a free shipping code or a referral bonus. The aim is to win new customers, but the same offer attracts people who have no interest in becoming customers. They want the discount, and they will create as many accounts as it takes to claim it again and again.

Promo abuse rarely makes headlines because it does not look like a breach. It looks like growth. Sign-ups climb, orders arrive and campaign dashboards turn green. The damage shows up later, in margins, inventory and marketing data that no longer reflects real demand.

Holiday periods put retailers under pressure. Order volumes rise, delivery windows tighten and teams are stretched, often with seasonal staff who are new to the business. Manual review becomes harder to sustain, and some merchants relax checks to keep checkout moving.

Abusers know this. They time their activity for the busiest days, when a few extra accounts are easy to miss. Automation helps them too, because scripts can create accounts and test promo codes far faster than any person could.

Most promotions are limited to one per customer, and the check usually relies on the email address, the shipping address or both. Abusers get around it with small variations:

Each of these can pass a simple format check. The entry looks like an email address, so the system accepts it. But a format check only asks whether an address is shaped correctly, not whether it is usable, unique or tied to a real customer.

Source link