MasterCard explaining why they've frozen the accounts of all Russians with cards issued by Russian banks. If they can do it to Russians, they can do it to you.
"With this action, cards issued by Russian banks will no longer be supported by the Mastercard network regardless of where they’re used - inside or outside of Russia. And, any Mastercard issued outside of the country will not work at Russian merchants or ATMs.*"
https://www.mastercard.com/news/press/2022/march/mastercard-statement-on-suspension-of-russian-operations
"With this action, cards issued by Russian banks will no longer be supported by the Mastercard network regardless of where they’re used - inside or outside of Russia. And, any Mastercard issued outside of the country will not work at Russian merchants or ATMs.*"
https://www.mastercard.com/news/press/2022/march/mastercard-statement-on-suspension-of-russian-operations