Exploring Privacy and Security as Drivers for Environmental Sustainability in Cloud-Based Office Solutions

• URL: http://arxiv.org/abs/2506.23866v3
• Date: Fri, 04 Jul 2025 13:50:03 GMT
• Title: Exploring Privacy and Security as Drivers for Environmental Sustainability in Cloud-Based Office Solutions
• Authors: Jason Kayembe, Iness Ben Guirat, Jan Tobias Mühlberg,
• Abstract summary: This paper explores the intersection of privacy, security, and environmental sustainability in cloud-based office solutions.<n>We hypothesise that privacy-focused services are typically more energy-efficient than those funded through data collection and advertising.<n>We apply our framework to three mainstream email services selected to reflect different privacy policies.
• Score: 1.3654846342364308
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In this paper, we explore the intersection of privacy, security, and environmental sustainability in cloud-based office solutions, focusing on quantifying user- and network-side energy use and associated carbon emissions. We hypothesise that privacy-focused services are typically more energy-efficient than those funded through data collection and advertising. To evaluate this, we propose a framework that systematically measures environmental costs based on energy usage and network data traffic during well-defined, automated usage scenarios. To test our hypothesis, we first analyse how underlying architectures and business models, such as monetisation through personalised advertising, contribute to the environmental footprint of these services. We then explore existing methodologies and tools for software environmental impact assessment. We apply our framework to three mainstream email services selected to reflect different privacy policies, from ad-supported tracking-intensive models to privacy-focused designs: Microsoft Outlook, Google Mail (Gmail), and Proton Mail. We extend this comparison to a self-hosted email solution, evaluated with and without end-to-end encryption. We show that the self-hosted solution, even with 14% of device energy and 15% of emissions overheads from PGP encryption, remains the most energy-efficient, saving up to 33% of emissions per session compared to Gmail. Among commercial providers, Proton Mail is the most efficient, saving up to 0.1 gCO2 e per session compared to Outlook, whose emissions can be further reduced by 2% through ad-blocking.

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