NEW YORK — Millions of Americans are getting new credit and debit cards with more secure chip technology, and that’s already leading to headaches for companies that rely on valid cards to charge their customers every month.

Video and music streaming companies, dating websites, gyms and other subscription-based companies can take a hit when customers don’t update their accounts after receiving a new card. It’s always been a hassle, but with millions of cards carrying the new chip technology being mailed out all at once, it’s creating bigger problems.

Netflix this week said large numbers of cards that weren’t updated were partly to blame for slower subscriber growth in its most recent quarter.

The video steaming site said Wednesday that an unusual number of accounts were canceled during the three months that ended in September. Netflix Inc., which has 69 million members around the world, expects the issue to continue into the next quarter as more new chip cards roll out.

With subscription services gaining in popularity, where customers have funds automatically withdrawn from checking accounts every month for a service, it has become increasingly noticeable when people don’t update the cards that they use for those services, or are unaware that they need to.

Often the number on the card is still the same but the expiration date has changed, said Matt Schulz, a senior analyst at credit card comparison site Typically, payments won’t go through if the expiration date is different.

Recurly, a San Francisco company that manages bill payments for more than 1,900 subscription businesses, said it has seen a slight increase in card declines. Recurly uses a service for its clients that automatically updates when new card numbers are issued, so the customer doesn’t have to do it themselves, said CEO Dan Burkhart, although not every bank participates in the service. Burkhart said subscription companies will face some “turbulence” as customers get new cards, but those issues are typically resolved within a few months.

IAC/InterActiveCorp, a New York company that owns dating websites such as and OkCupid, said major security breaches at Target and Home Depot last year cost it about $5 million in annual earnings, before interest, taxes, depreciation and amortization. When the two stores issued new credit cards, some users did not update their dating website accounts and they were canceled.

New cards may continue to haunt subscription businesses in the coming months. Most cards in the U.S. haven’t been switched to chip cards yet.

“This issue isn’t going away anytime soon,” Schulz said.

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