SEQR is a prototype QR‑code reader built to safeguard users against malicious QR codes. It enhances the conventional scanning workflow with a suite of security features. This version presents a review‑ready build of SEQR, intended for academic evaluation and user‑testing to validate its effectiveness, usability, and resilience against emerging QR‑based attack vectors.
This app is based on the app "Privacy Friendly QR Scanner", which source code is licensed under GPLv3, as is this app's source code. More information about the original app can be found on GitHub.
@inproceedings{10.1145/3772318.3793213,
title = {Development, Evaluation, and Implementation of SEQR – a Usable Secure QR code Scanner},
author = {Mossano, Mattia and Veit, Maxime Fabian and Länge, Tobias and Berens, Benjamin Maximilian and Sharevski, Filipo and Volkamer, Melanie},
note = {Mattia Mossano and Maxime Fabian Veit contributed equally},
booktitle = {Proceedings of the 2026 CHI Conference on Human Factors in Computing Systems},
publisher = {Association for Computing Machinery},
address = {New York, NY, USA},
year = {2026},
url = {https://doi.org/10.1145/3772318.3793213},
doi = {10.1145/3772318.3793213},
location = {Barcelona, Spain}
}
SEQR is licensed under the GPLv3.
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.
The icons used in the navigation drawer are licensed under the CC BY 2.5. In addition to them, the app uses icons from Google Design Material Icons licensed under Apache License Version 2.0.