Core Viewpoint - The article highlights the increasing prevalence of online shopping fraud during the Double 11 shopping festival, emphasizing the need for consumer vigilance against various scams targeting online shoppers [3][10]. Group 1: Types of Scams - The article outlines several types of scams prevalent during the Double 11 shopping festival, including refund and compensation scams, where fraudsters lure victims into transferring money under the guise of refunds or compensation for faulty products [5][10]. - Another common scam involves impersonating customer service representatives, claiming issues with purchased items and prompting victims to share personal information or download malicious apps [10][11]. - The article also mentions phishing scams that exploit promotional messages to direct consumers to fake websites, leading to potential theft of personal information and funds [10]. Group 2: Fraud Prevention Measures - Authorities recommend that consumers adhere to the "four no principles" to protect themselves: do not engage in private communication outside official platforms, do not trust high compensation promises, avoid downloading unknown software, and do not transfer money to unfamiliar accounts [6][10]. - The article emphasizes the importance of consumer awareness and vigilance, urging individuals not to download any software based on unsolicited prompts and to safeguard their personal information [11][12]. - The article notes that the fraud industry has become increasingly sophisticated, operating in a "puzzle-like" manner where different teams handle various aspects of the scam, making it challenging to combat [10].

Core Viewpoint - The article emphasizes the increasing prevalence of online shopping fraud during the Double 11 shopping festival, highlighting the need for consumers to remain vigilant against scams that impersonate e-commerce platforms and lure individuals into downloading fraudulent applications or sharing personal information [1][6]. Group 1: Fraud Types and Tactics - Various types of scams have been identified, including refund and compensation fraud, where scammers set up fake online stores, send defective products, and then manipulate consumers into transferring money under the guise of compensation [4][6]. - Scammers are increasingly using tactics such as screen sharing and remote control of victims' devices to access sensitive banking information, leading to significant financial losses [5][6]. - The fraud schemes have evolved into a "puzzle-like" operational model, with different teams handling various aspects of the scam, making it difficult to dismantle the entire operation [6][7]. Group 2: Consumer Warnings and Recommendations - Authorities have issued warnings advising consumers to avoid private communications outside official platforms, refrain from adding unknown contacts on social media, and not to download unofficial software [1][4]. - The "Four No Principles" for consumer protection include not engaging in private conversations outside official platforms, not trusting high compensation promises, avoiding unknown software downloads, and not transferring money to unfamiliar accounts [4][6]. - The National Anti-Fraud Center has compiled a "Fraud Prevention Handbook" for Double 11, detailing common scams such as pre-sale fraud, impersonation of customer service, and fake prize notifications [6][7].