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Publications (10 of 20) Show all publications
Hawkes, S., Weinert, C., Almeida, T. & Mehrnezhad, M. (2025). Perceptual hash inversion attacks on image-based sexual abuse removal tools. IEEE Security and Privacy, 23(3), 64-73
Open this publication in new window or tab >>Perceptual hash inversion attacks on image-based sexual abuse removal tools
2025 (English)In: IEEE Security and Privacy, ISSN 1540-7993, E-ISSN 1558-4046, Vol. 23, no 3, p. 64-73Article in journal (Refereed) Published
Abstract [en]

Perceptual hashing, crucial for detecting and removing image-based sexual abuse (IBSA) online, faces vulnerabilities from low-budget inversion attacks based on generative artificial intelligence. We advocate implementing secure hash matching in IBSA removal tools to mitigate potentially fatal consequences.

Place, publisher, year, edition, pages
IEEE, 2025
National Category
Computer graphics and computer vision
Identifiers
urn:nbn:se:umu:diva-232602 (URN)10.1109/MSEC.2024.3485497 (DOI)001362243400001 ()2-s2.0-85210295784 (Scopus ID)
Available from: 2024-12-06 Created: 2024-12-06 Last updated: 2025-07-11Bibliographically approved
Karahanoğlu, A., Vidal, L. T., Harrison, D., Steane, J., Ekhtiar, T., Almeida, T., . . . Balaam, M. (2024). Life in transitions: the role of technology in supporting well-being in the heart of change. In: NordiCHI '24 Adjunct: Adjunct Proceedings of the 2024 Nordic Conference on Human-Computer Interaction: . Paper presented at NordiCHI Adjunct 2024: Nordic Conference on Human Computer Interaction, Uppsala, Sweden, October 13-16, 2024. Association for Computing Machinery (ACM), Article ID 55.
Open this publication in new window or tab >>Life in transitions: the role of technology in supporting well-being in the heart of change
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2024 (English)In: NordiCHI '24 Adjunct: Adjunct Proceedings of the 2024 Nordic Conference on Human-Computer Interaction, Association for Computing Machinery (ACM), 2024, article id 55Conference paper, Published paper (Refereed)
Abstract [en]

Life transitions, whether due to ageing, health conditions, or significant life events, pose unique challenges for individuals' health and well-being. These periods demand adjustments in physical health and self-care of mental states. Meanwhile, interactive technologies like personal informatics, self-tracking tools, artificial intelligence (AI) driven health monitoring systems and virtual reality can enhance well-being by helping individuals understand their bodily changes; their role in life transitions is under-explored. Therefore, this workshop aims to bridge the gap between the availability of interactive technologies for managing health and well-being and their meaningful use during life transitions. By examining current practices and gaps, we seek to identify opportunities for designing interactive technologies and develop a research agenda to facilitate the alignment of these technologies with the evolving needs of individuals.

Place, publisher, year, edition, pages
Association for Computing Machinery (ACM), 2024
Series
ACM International Conference Proceeding Series
Keywords
Digital Health, Health, Health Data, Interactive Technologies, Life Transitions, well-being
National Category
Nursing Human Computer Interaction
Identifiers
urn:nbn:se:umu:diva-231129 (URN)10.1145/3677045.3685470 (DOI)001331863500054 ()2-s2.0-85206591205 (Scopus ID)9798400709654 (ISBN)
Conference
NordiCHI Adjunct 2024: Nordic Conference on Human Computer Interaction, Uppsala, Sweden, October 13-16, 2024
Available from: 2024-11-01 Created: 2024-11-01 Last updated: 2025-04-24Bibliographically approved
Correia, F., Neto, I., Fortes-Ferreira, M., Oogjes, D. & Almeida, T. (2024). More-than-human perspective on the robomorphism paradigm. In: HRI ’24 Companion: Companion of the 2024 ACM/IEEE International Conference on Human-Robot Interaction. Paper presented at 2024 ACM/IEEE International Conference on Human-Robot Interaction, Boulder, CO, USA, March 11-15, 2024 (pp. 11-19). Association for Computing Machinery (ACM)
Open this publication in new window or tab >>More-than-human perspective on the robomorphism paradigm
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2024 (English)In: HRI ’24 Companion: Companion of the 2024 ACM/IEEE International Conference on Human-Robot Interaction, Association for Computing Machinery (ACM), 2024, p. 11-19Conference paper, Published paper (Refereed)
Abstract [en]

This paper proposes a posthuman perspective of the robomorphism theory. We propose to define robomorphism as the attribution of robotlike traits to non-robotic entities. Such a definition embraces the centrality of robots in two aspects. First, by assuming the target of robomorphism is not necessarily a human. Second, by considering the notion of robomorphic traits as inherently crucial to establish the robomorphism paradigm. Embracing robots as relevant non-humans in the robomorphism paradigm constitutes the more-than-human perspective of the proposed approach. The contributions of this paper are threefold. First, we propose the robomorphism paradigm by defining it and its inherent concepts, such as robomorphisation and robomorphic. Second, we discuss the broader implications of the robomorphism theory to the research community of Human-Robot Interaction, raising important new challenges. Third, we created a preliminary inventory of robomorphic traits, which were collected from a speculative workshop activity in order to start answering one of the proposed open challenges.

Place, publisher, year, edition, pages
Association for Computing Machinery (ACM), 2024
Keywords
robomorphism, robomorphic, posthumanism, more-than-human, robot-likeness, robot-like traits
National Category
Other Engineering and Technologies
Research subject
human-computer interaction; Computer Science
Identifiers
urn:nbn:se:umu:diva-222462 (URN)10.1145/3610978.3640761 (DOI)001255070800002 ()2-s2.0-85188101104 (Scopus ID)979-8-4007-0323-2 (ISBN)
Conference
2024 ACM/IEEE International Conference on Human-Robot Interaction, Boulder, CO, USA, March 11-15, 2024
Available from: 2024-03-18 Created: 2024-03-18 Last updated: 2025-04-24Bibliographically approved
Almeida, T., Mehrnezhad, M. & Cook, S. (2024). The importance of collective privacy in digital sexual and reproductive health. Paper presented at 17th Annual UK Fertility Conference, Edinburgh, UK, January 10-13, 2024.
Open this publication in new window or tab >>The importance of collective privacy in digital sexual and reproductive health
2024 (English)Manuscript (preprint) (Other academic)
Keywords
Intimate data, Cybersecurity and privacy, Digital health, Reproductive health, sexual health
National Category
Public Health, Global Health and Social Medicine Gender Studies Human Computer Interaction
Research subject
human-computer interaction; Computer Science; Public health; gender studies; design
Identifiers
urn:nbn:se:umu:diva-220358 (URN)10.48550/arXiv.2311.15432 (DOI)
Conference
17th Annual UK Fertility Conference, Edinburgh, UK, January 10-13, 2024
Note

Presented at the 17th Annual UK Fertility Conference, Edinburgh, UK, January 10-13, 2024.

Available from: 2024-02-01 Created: 2024-02-01 Last updated: 2025-02-20
Nordin, H., Almeida, T. & Wiberg, M. (2023). Designing to restory the past: storytelling for empowerment through a digital archive. International Journal of Design, 17(1), 91-104
Open this publication in new window or tab >>Designing to restory the past: storytelling for empowerment through a digital archive
2023 (English)In: International Journal of Design, ISSN 1991-3761, E-ISSN 1994-036X, Vol. 17, no 1, p. 91-104Article in journal (Refereed) Published
Abstract [en]

Storytelling is a frequently used approach to design. Stories and storytelling also have a role in mediating information and contributing to people’s understanding of the world around them. Previous research suggests that storytelling can be empowering to marginalized and diverse communities, such as Indigenous peoples, by offering a platform to voice their (hi)stories. In this paper, we present a research through design project in which we explore the design of the living archive. This is a web-based digital archive that encourages a user-based approach to restorying the past by focusing on storytelling for empowerment and involving members of Indigenous People, the Sami. We demonstrate how a digital archive can contribute to (re)storying the past in a manner that preserves Indigenous ways of knowing and ethical archiving of social memory. Through this archive, we provide the digital tools for the communities to take on the role to tell their truth and, in doing so, become central in the design and communication of their own stories. In short, design for storytelling to empower those who need a voice.

Place, publisher, year, edition, pages
Chinese Institute of Design, 2023
Keywords
Design for Empowerment, Digital Archives, Marginalized Groups, Research through Design (RtD), Sensitive Design, Storytelling
National Category
Information Systems, Social aspects
Identifiers
urn:nbn:se:umu:diva-211796 (URN)10.57698/v17i1.06 (DOI)000992852800006 ()2-s2.0-85163101670 (Scopus ID)
Available from: 2023-07-11 Created: 2023-07-11 Last updated: 2024-07-02Bibliographically approved
Moniz, D. P., Mehrnezhad, M. & Almeida, T. (2023). Intimate data: exploring perceptions of privacy and privacy-seeking behaviors through the story completion method. In: José Abdelnour Nocera, Marta Kristín Lárusdóttir; Helen Petrie; Antonio Piccinno; Marco Winckler (Ed.), Human-Computer Interaction – INTERACT 2023: 19th IFIP TC13 International Conference, York, UK, August 28 – September 1, 2023, Proceedings, Part III. Paper presented at Human-Computer Interaction – INTERACT 2023, 19th IFIP TC13 International Conference, York, UK, August 28 - September 1, 2023 (pp. 533-543). Springer Nature
Open this publication in new window or tab >>Intimate data: exploring perceptions of privacy and privacy-seeking behaviors through the story completion method
2023 (English)In: Human-Computer Interaction – INTERACT 2023: 19th IFIP TC13 International Conference, York, UK, August 28 – September 1, 2023, Proceedings, Part III / [ed] José Abdelnour Nocera, Marta Kristín Lárusdóttir; Helen Petrie; Antonio Piccinno; Marco Winckler, Springer Nature, 2023, p. 533-543Conference paper, Published paper (Refereed)
Abstract [en]

Privacy is a fundamental human right in the digital age. With the proliferation of intimate health technologies, such as data-driven apps and connected devices that track bodily care and sensitive topics, privacy is increasingly critical. In this paper, we explore the complexity of intimate data and user perspectives and the choices they make to protect themselves. We introduce a story completion study with 27 participants to examine individuals’ concerns about data privacy, their protective or avoidant actions, and the potential mismatches between privacy concerns and actual behaviors. We suggest future research that combines User-Tailored Privacy (UTP) and participatory threat modeling to create privacy solutions that account for users’ needs and the potential risks and harms associated with the use of their data.

Place, publisher, year, edition, pages
Springer Nature, 2023
Series
Lecture Notes in Computer Science, ISSN 0302-9743, E-ISSN 1611-3349 ; 14144
Keywords
Intimate data, Digital health, Privacy
National Category
Other Engineering and Technologies Other Social Sciences
Research subject
human-computer interaction
Identifiers
urn:nbn:se:umu:diva-215305 (URN)10.1007/978-3-031-42286-7_30 (DOI)001290144000030 ()2-s2.0-85173001952 (Scopus ID)978-3-031-42285-0 (ISBN)978-3-031-42286-7 (ISBN)
Conference
Human-Computer Interaction – INTERACT 2023, 19th IFIP TC13 International Conference, York, UK, August 28 - September 1, 2023
Available from: 2023-10-16 Created: 2023-10-16 Last updated: 2025-04-24Bibliographically approved
Öhlund, L. & Almeida, T. (2023). Mapping the digital injustices of technology-facilitated sex trafficking. In: Abdelnour Nocera, J., Kristín Lárusdóttir, M., Petrie, H., Piccinno, A., Winckler, M. (Ed.), Human-Computer Interaction – INTERACT 2023. INTERACT 2023: . Paper presented at 19th IFIP TC 13 International Conference on Human-Computer Interaction, INTERACT 2023, 28 August-1 September 2023, York, UK (pp. 523-527). Springer
Open this publication in new window or tab >>Mapping the digital injustices of technology-facilitated sex trafficking
2023 (English)In: Human-Computer Interaction – INTERACT 2023. INTERACT 2023 / [ed] Abdelnour Nocera, J., Kristín Lárusdóttir, M., Petrie, H., Piccinno, A., Winckler, M., Springer, 2023, p. 523-527Conference paper, Published paper (Refereed)
Abstract [en]

As technology and social media develop and expand, technology-facilitated sex trafficking becomes increasingly difficult to take action against and prevent. Technology-facilitated sex trafficking implies the use of digital tools such as social media platforms to coordinate trafficking and (mis)lead persons into sexual exploitation, e.g., commercial sex. To address and prevent sex trafficking as it expands through technology, legal frameworks can both help and interfere with the work provided by aid organizations and authorities. We present an expert interview study with six professionals from authorities, women shelters and NGO organizations working alongside the Swedish (governance) Model. Our findings show that digital technology is useful yet heavily challenging for anti-trafficking organizations and authorities in their fight against sex trafficking, exploitation, and digital child abuse. More resources and tools are needed to mitigate the (mis)use of technology and prevent abuse. To do this, we discuss the need to recontextualize efforts against trafficking within the structural conditions and legal model of Swedish society that facilitate exploitation. Furthermore, we propose a series of risk-mitigating approaches which centers four questions for the HCI community working towards anti-trafficking efforts.

Place, publisher, year, edition, pages
Springer, 2023
Series
Lecture Notes in Computer Science, ISSN 0302-9743, E-ISSN 1611-3349 ; 14145
Keywords
Sex Trafficking, Social Justice, Technology Facilitated Farm
National Category
Other Social Sciences not elsewhere specified
Identifiers
urn:nbn:se:umu:diva-215239 (URN)10.1007/978-3-031-42293-5_66 (DOI)001290148900069 ()2-s2.0-85172994100 (Scopus ID)9783031422928 (ISBN)9783031422935 (ISBN)
Conference
19th IFIP TC 13 International Conference on Human-Computer Interaction, INTERACT 2023, 28 August-1 September 2023, York, UK
Available from: 2023-10-16 Created: 2023-10-16 Last updated: 2025-04-24Bibliographically approved
Mehrnezhad, M. & Almeida, T. (2023). "my sex-related data is more sensitive than my financial data and i want the same level of security and privacy": user risk perceptions and protective actions in female-oriented technologies. In: EuroUSEC '23: Proceedings of the 2023 European Symposium on Usable Security. Paper presented at EuroUSEC '23: the 2023 European Symposium on Usable Security, Copenhagen, Denmark, October 16-17, 2023 (pp. 1-14). Association for Computing Machinery (ACM)
Open this publication in new window or tab >>"my sex-related data is more sensitive than my financial data and i want the same level of security and privacy": user risk perceptions and protective actions in female-oriented technologies
2023 (English)In: EuroUSEC '23: Proceedings of the 2023 European Symposium on Usable Security, Association for Computing Machinery (ACM), 2023, p. 1-14Conference paper, Published paper (Refereed)
Abstract [en]

The digitalization of the reproductive body has engaged myriads of cutting-edge technologies in supporting people to know and tackle their intimate health. Generally understood as female technologies (aka female-oriented technologies or ‘FemTech’), these products and systems collect a wide range of intimate data which are processed, transferred, saved and shared with other parties. In this paper, we explore how the “data-hungry" nature of this industry and the lack of proper safeguarding mechanisms, standards, and regulations for vulnerable data can lead to complex harms or faint agentic potential. We adopted mixed methods in exploring users’ understanding of the security and privacy (SP) of these technologies. Our findings show that while users can speculate the range of harms and risks associated with these technologies, they are not equipped and provided with the technological skills to protect themselves against such risks. We discuss a number of approaches, including participatory threat modelling and SP by design, in the context of this work and conclude that such approaches are critical to protect users in these sensitive systems. 

Place, publisher, year, edition, pages
Association for Computing Machinery (ACM), 2023
Keywords
Intimate data, Cybersecurity and privacy, FemTech, Reproductive health
National Category
Other Engineering and Technologies Other Social Sciences Computer and Information Sciences
Research subject
Computer Science; human-computer interaction
Identifiers
urn:nbn:se:umu:diva-215306 (URN)10.1145/3617072.3617100 (DOI)2-s2.0-85175401335 (Scopus ID)9798400708145 (ISBN)
Conference
EuroUSEC '23: the 2023 European Symposium on Usable Security, Copenhagen, Denmark, October 16-17, 2023
Available from: 2023-10-16 Created: 2023-10-16 Last updated: 2023-11-10Bibliographically approved
Mavroudi, A., Almeida, T., Frennert, S., Laaksolahti, J. & Viberg, O. (2022). A card game for designing activities for technology-enhanced learning in higher education. Education and Information Technologies: Official Journal of the IFIP technical committee on Education, 27, 2367-2383
Open this publication in new window or tab >>A card game for designing activities for technology-enhanced learning in higher education
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2022 (English)In: Education and Information Technologies: Official Journal of the IFIP technical committee on Education, ISSN 1360-2357, E-ISSN 1573-7608, Vol. 27, p. 2367-2383Article in journal (Refereed) Published
Abstract [en]

The importance of providing mechanisms and tools that effectively support the transition from implicit to explicit representations of Learning Design has been emphasised by previous research in the field of Technology-Enhanced Learning (TEL). In addition, the benefits of Game-based learning approaches have been long documented in the educational research literature. The paper presents the design, implementation and evaluation of a card game that aims to support the design process of TEL activities in higher education. The game was tested by a group of 36 students and tutors (n = 36) in higher education during an interactive workshop. Feedback was asked by the participants using an anonymous survey. The results reveal that the participants a) are satisfied with the game process, b) appreciate the groupwork and interaction taking place, and c) believe that they used their communication and collaboration skills. The paper includes the description of the outputs of a group (i.e., the cards selected for their TEL scenario and their actual TEL scenario) to exemplify that it is possible to use the game in order to elicit or diagnose existing LD knowledge from the game participants. The paper concludes on the usefulness of the approach suggested, limitations, and plans for future work.

Place, publisher, year, edition, pages
Springer, 2022
Keywords
Learning design, Technology-enhanced learning, Game-based learning, Higher education
National Category
Pedagogy Design Human Computer Interaction
Research subject
education; design; Computer Science; human-computer interaction
Identifiers
urn:nbn:se:umu:diva-186812 (URN)10.1007/s10639-021-10668-z (DOI)000686871100001 ()2-s2.0-85113158315 (Scopus ID)
Available from: 2021-08-23 Created: 2021-08-23 Last updated: 2025-02-24Bibliographically approved
Almeida, T., Shipp, L., Mehrnezhad, M. & Toreini, E. (2022). Bodies like yours: enquiring data privacy in FemTech. In: : . Paper presented at NordiCHI '22: Nordic Human-Computer Interaction Conference, Aarhus, Denmark, October 8-12, 2022. ACM Digital Library, Article ID 54.
Open this publication in new window or tab >>Bodies like yours: enquiring data privacy in FemTech
2022 (English)Conference paper, Published paper (Refereed)
Abstract [en]

The digitalisation of the reproductive body has seen a myriad of cutting-edge technologies to prioritise neglected intimate health and care topics, such as fertility and contraception. The impact of these intimate data on livelihood and society is pervasive including that privacy is critical to safeguarding security as this increasing digitalisation also produces increasingly large datasets. In this paper, we enquire the collective nature of privacy in female-oriented technologies (FemTech) to show how this ever-extending collection of data implicates many beyond the individual. We introduce a pilot study on the data collection practices of a subset of FemTech devices with fertility tracking service. We demonstrate that data is collected about the user and others, such as their immediate relationships and user groups as a whole. We suggest that it is critical we ask who is vulnerable and discuss approaches to mitigate collective harm.

Place, publisher, year, edition, pages
ACM Digital Library, 2022
Keywords
Human-centered computin, Human computer interaction (HCI), Security and privacy, Social aspects of security and privacy
National Category
Other Social Sciences Other Computer and Information Science
Research subject
human-computer interaction; design; Computer Science
Identifiers
urn:nbn:se:umu:diva-205671 (URN)10.1145/3547522.3547674 (DOI)2-s2.0-85139844716 (Scopus ID)978-1-4503-9448-2 (ISBN)
Conference
NordiCHI '22: Nordic Human-Computer Interaction Conference, Aarhus, Denmark, October 8-12, 2022
Available from: 2023-03-13 Created: 2023-03-13 Last updated: 2023-03-13Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0001-7393-3379

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