向加拿大移民局支付SDS申请费用是安全的。Canadian government does not accept any form of payment like Western Union，PayPal, Visa or any cards or bit coins. You can only pay online through your account. The official website of Immigration，Refugees and Citizenship Canada (IRCC) provides detailed information on how to make your payment, including accepted payment methods and step-by-step instructions. It is important to make sure you are using the official IRCC website and not fall for any scams or unauthorized methods of payment. If you have any doubts or concerns regarding the payment process, it is advisable to contact the IRCC directly for clarification.