similar here - from US, had a few trips to russia and china over a few years. never told the bank. went over there, used my cards, no issues, ever. came back

similar here - from US, had a few trips to russia and china over a few years. never told the bank. went over there, used my cards, no issues, ever. came back home. no issues. bought $12 from a merchant in sweden - a merchant I'd purchased the exact service from multiple times before - entire account locked for 'fraudulent activity'. Checks bounced, payments blocked, etc. Annoying as shit. Took a couple days to sort out (happened on a friday afternoon, of course). They refunded all charges, but... damn. I think things are better now (this was... 2014 IIRC).