Now I've done some reading, and it seems my country (in Latin America) is following US standards. It seems US-issued credit cards only require signatures, even when used abroad, and only recently (as far as I can google it) are they slowly starting to switch to either PIN or chip-based cards. Newly issued cards where I live have chips (this is a relatively recent development), which I'm not sure exactly how are supposed to be safer than magnetic strip cards, and also don't require PINs.
Now I've done some reading, and it seems my country (in Latin America) is following US standards. It seems US-issued credit cards only require signatures, even when used abroad, and only recently (as far as I can google it) are they slowly starting to switch to either PIN or chip-based cards. Newly issued cards where I live have chips (this is a relatively recent development), which I'm not sure exactly how are supposed to be safer than magnetic strip cards, and also don't require PINs.