If you currently accept credit or debit card payments via Stripe on your website as part of either a payment form or online shop then you might need to look at your setup and make some changes before September 14th 2019 or transactions may be declined by your bank. Essentially you’ll need to make sure any website integrations or plugins are fully up to date before the 14th but you may also need to change some settings in those plugins to fully comply.
We wont know for sure until after the 14th if payments to you will be affected as some low risk transactions will be exempt but it’s wise to prepare anyway. More information is available here:
https://stripe.com/docs/strong-customer-authentication
If anyone is unsure about their website payment setup, please get in touch and I’ll have a look for you.