Thank you for contacting PayPal Customer Support. My name is Gerard and I am happy to assist you about a recurring payment to Alibaba Cloud US LLC.
It shows that our Internal Security System was triggered when you try to set up a recurring payment. To tell you honestly, the Internal Security System will not provide us the exact reason why it was triggered.
We can only give possibilities. It is possible that you are using an unsecured internet connection or you are on a different location. Rest assured that our automated security system is put in place to protect the privacy of your account and to provide a secure online payment method. This helps prevent lost or stolen financial information from being used for unauthorized transactions.
Thank you for trusting PayPal. May you have a great day ahead and you take care!