Article in English: Scammers typically try to find people who seem vulnerable (e.g., widowers or single, older people). Once a scammer makes a connection with a victim, they will request money for an emergency (e.g., a hospital bill) or a circumstantial event (e.g., a plane ticket to come see you). While middle-aged widowers have traditionally been targets for online fraud, no online dating user is exempt from being targeted by scams on an international scale. While no two scammers are identical, nearly all dating scammers will exhibit several of the following behaviors:  Insistence on taking the conversation off of the dating service (e.g., asking to text or email) Repeatedly asking for odd personal information (e.g., your location) Disconcertingly dramatic, erratic, or otherwise strange behavior (in all likelihood, you'll want to avoid dating people like this anyway) Early or inappropriate professions of love Common scammer profiles are modeled differently depending on whether they are male or female, but you'll usually see several of the following attributes if the person is a scammer:  High income Average height Attractive No political persuasion Engineer (male) or student (female) Mid-40s (male) or low 30s (female) Online dating scammers usually target people older than themselves. Save a copy of their profile photo, then upload it to Google to search for other instances of it. If you see several other sites with the photo pop up in the results, then you know that—at the very least—they're not using their own photo. If you do determine that they're not using their own photo, consider calling them out. This may reveal more suspicious behavior. When communicating, scammers' messages will be full of inconsistencies, often getting their own name or your name wrong. These messages may be badly written or repeat themselves. Watch for these other signs:  Their command of language deteriorates with time. They may even start out having no clue about grammar or punctuation. They make mistakes in that their "story" begins to...

Summary in Vietnamese:
Tìm hiểu phương thức lừa đảo. Ý thức rằng ai cũng có thể bị lừa đảo. Chú ý hành vi lừa đảo. Xem hồ sơ của đối tượng. Lưu ý khoảng cách tuổi tác khi bạn là người lớn tuổi hơn. Tìm bản sao của ảnh đại diện. Phân tích kỹ những gì họ nói trong cuộc trò chuyện. Hẹn gặp họ. Đề nghị liên lạc với người đó qua việc gọi video hoặc gọi thoại. Cảnh giác với “mồi nhử”.