The following content is intended to help everyone understand this type of attack method, enhance awareness of prevention, and do not use it for any illegal purpose. The following are some strategies that criminals may use on online communication platforms to pretend to be "friends" to deceive others' sensitive information: 1. Fake personal information and social accounts • Create an account similar to a friend known to the target: By stealing other people's profile pictures, nicknames or some personal information, create an "acquaintance" account to make the victim trust you at first impression. • Utilize information on social platforms: Criminals may first collect information about the target and his or her circle of friends through public channels, and then construct a false identity with a "similar background". 2. Establish long-term interaction and trust • Gradually cultivate feelings: At the beginning, they may start with ordinary chats, sharing similar hobbies, and discussing common topics to establish a "friendship" foundation and lower the other party's vigilance. • Gradual approach: After the relationship gradually deepens, criminals may begin to ask some seemingly harmless information, and eventually extend to sensitive information or financial information. 3. Using emergency situations to induce • Creating a sense of urgency: Taking full advantage of the victim’s trust in friends, sending messages such as “urgent help” or “account stolen” to make the victim eager to help and ignore identity verification. • Requesting verification information under pretexts: Asking the other party to provide account passwords, verification codes, or other sensitive information for various reasons (such as system updates, identity verification, error correction, etc.). 4. Using two-way acquaintance relationships • “Middleman” disguise: Sometimes attackers use other people who know each other as “middlemen” to approach the target through recommendations or referrals from acquaintances, making the other party feel more at ease. • “Spear phishing”: Personalized planning for specific targets, using their familiar interpersonal networks and known information to create more credible communication content. 5. Using multi-platform linkage • Cross-platform verification: Attackers may establish multiple “presences” on different social platforms and communicate with targets on different platforms to increase the credibility of their identities. • Using screenshots of real chat records or soliciting information: Creating the illusion of long-term “friend” interactions by forging or abusing existing chat records. 6. Using technical means • “Deep fake” technology: In some cases, criminals may use fake audio, video or avatars to impersonate real friends by modifying details in video calls. • Account hijacking: In some cases, after taking control of a real account, attackers actively contact the target as a friend, making it easier to deceive trust and information. Prevention suggestions: • Stay vigilant: Even if the other party seems to be a friend you know, you should verify by phone or other reliable means before exchanging sensitive information. • Pay attention to information security: Do not easily click on links sent by the other party, and do not enter important account numbers and passwords in unofficial channels. • Check account security settings regularly: Enable two-factor authentication, update passwords in a timely manner, and pay attention to security tips on social platforms. Understanding these strategies will help raise awareness and protect personal information security. Once again, this information is for security prevention and educational purposes only. Any use of such means to commit fraud or other illegal activities is strictly prohibited by law and will be prosecuted.