Strong Customer Authentication (SCA) payment authorisation does not apply to payments made on merchant websites outside Europe. 

We recommend that you follow good practice when paying online:

➤⠀buy from sites that you trust and that are secure (have "https" in the URL/link);

➤⠀ don't follow up on email/phone/social media requests asking for card details or directing you to suspicious websites;

➤⠀beware of websites with "can't refuse" offers, they can often be misleading etc.