“发票已开好，请点击下载……”当心这类电子邮件！

Core Viewpoint - The article highlights the rising threat of phishing emails disguised as electronic invoices, which can lead to serious data breaches and national security risks [1][2]. Group 1: Nature of the Threat - Cybercriminals are impersonating telecom operators, e-commerce platforms, and travel services to create highly convincing phishing emails that lower recipients' guard [2]. - These emails often include phrases like "overdue" and instructions to view on a computer to mislead users, making them appear legitimate [2]. - Clicking on attachments or links in these emails can lead to the installation of malware that steals sensitive data and can even remotely activate cameras and microphones [2][4]. Group 2: Prevention Measures - Users are advised to verify the sender's email address, ensuring it comes from a legitimate domain, as phishing emails often use temporary or common public email domains [4]. - It is crucial to scrutinize email attachments, as they may appear to be standard document formats but can contain malicious software [8]. - If a suspicious email is clicked, immediate actions should include disconnecting from the network, closing sensitive accounts, and reporting to the organization's cybersecurity department [11].