Title: Extended Version: Security and Privacy Perceptions of Pakistani Facebook Matrimony Group Users Show Chinese title

Title: 扩展版本：巴基斯坦Facebook婚恋群组用户的隐私与安全感知

Abstract: In Pakistan, where dating apps are subject to censorship, Facebook matrimony groups -- also referred to as marriage groups -- serve as alternative virtual spaces for members to search for potential life partners. To participate in these groups, members often share sensitive personal information such as photos, addresses, and phone numbers, which exposes them to risks such as fraud, blackmail, and identity theft. To better protect users of Facebook matrimony groups, we need to understand aspects related to user safety, such as how users perceive risks, what influences their trust in sharing personal information, and how they navigate security and privacy concerns when seeking potential partners online. In this study, through 23 semi-structured interviews, we explore how Pakistani users of Facebook matrimony groups perceive and navigate risks of sharing personal information, and how cultural norms and expectations influence their behavior in these groups. We find elevated privacy concerns among participants, leading them to share limited personal information and creating mistrust among potential partners. Many also expressed concerns about the authenticity of profiles and major security risks, such as identity theft, harassment, and social judgment. Our work highlights the challenges of safely navigating Facebook matrimony groups in Pakistan and offers recommendations for such as implementing stronger identity verification by group admins, enforcing stricter cybersecurity laws, clear platform guidelines to ensure accountability, and technical feature enhancements -- including restricting screenshots, picture downloads, and implementing anonymous chats -- to protect user data and build trust. Show Chinese abstract

Abstract: 在巴基斯坦，约会应用程序受到审查，Facebook婚姻群组——也称为婚姻群组——为成员提供了寻找潜在人生伴侣的替代虚拟空间。 要参与这些群组，成员通常会分享敏感的个人信息，如照片、地址和电话号码，这使他们面临欺诈、勒索和身份盗窃等风险。 为了更好地保护Facebook婚姻群组的用户，我们需要了解与用户安全相关的方面，例如用户如何感知风险，什么影响他们对分享个人信息的信任，以及他们在在线寻找潜在伴侣时如何应对安全和隐私问题。 在本研究中，通过23次半结构化访谈，我们探讨了巴基斯坦Facebook婚姻群组用户如何感知和应对分享个人信息的风险，以及文化规范和期望如何影响他们在这些群组中的行为。 我们发现参与者存在较高的隐私担忧，导致他们只分享有限的个人信息，并在潜在伴侣之间造成了不信任。 许多人还表达了对资料真实性的担忧以及重大的安全风险，如身份盗窃、骚扰和社会评判。 我们的工作突出了在巴基斯坦安全地使用Facebook婚姻群组的挑战，并提出了相关建议，例如群组管理员实施更强的身份验证，执行更严格的网络安全法律，明确平台指南以确保问责制，以及技术功能改进——包括限制截图、图片下载和实施匿名聊天——以保护用户数据并建立信任。