Short answer
You should be extremely cautious and should not send money based solely on a matrimonial relationship or urgent emotional request.
Islamic Guidance
What Islam teaches
Islam prohibits consuming another person's wealth unjustly and emphasizes honesty and trust.
Practical Guidance
What you can consider
Do not transfer money, share OTPs, banking credentials or financial passwords. If a legitimate financial matter arises, verify it independently and involve trusted family members.
Sources
Qur'an 2:188.