Short answer
Identity and background should be verified, and the first meeting should take place safely and transparently.
Islamic Guidance
What Islam teaches
Islam encourages caution and verification when information is uncertain.
Practical Guidance
What you can consider
Involve trusted family members, use safe meeting arrangements and do not send money or sensitive documents without a legitimate reason.
Sources
Qur'an 49:6; Qur'an 4:29.