{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,15]],"date-time":"2026-07-15T07:15:45Z","timestamp":1784099745097,"version":"3.55.0"},"reference-count":128,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2020,4,16]],"date-time":"2020-04-16T00:00:00Z","timestamp":1586995200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100008904","name":"Universit\u00e0 Ca' Foscari di Venezia","doi-asserted-by":"publisher","award":["Adir Luccio"],"award-info":[{"award-number":["Adir Luccio"]}],"id":[{"id":"10.13039\/501100008904","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Information"],"abstract":"<jats:p>The widespread use of smartphones is boosting the market take-up of dedicated applications and among them, barcode scanning applications. Several barcodes scanners are available but show security and privacy weaknesses. In this paper, we provide a comprehensive security and privacy analysis of 100 barcode scanner applications. According to our analysis, there are some apps that provide security services including checking URLs and adopting cryptographic solutions, and other apps that guarantee user privacy by supporting least privilege permission lists. However, there are also apps that deceive the users by providing security and privacy protections that are weaker than what is claimed. We analyzed 100 barcode scanner applications and we categorized them based on the real security features they provide, or on their popularity. From the analysis, we extracted a set of recommendations that developers should follow in order to build usable, secure and privacy-friendly barcode scanning applications. Based on them, we also implemented BarSec Droid, a proof of concept Android application for barcode scanning. We then conducted a user experience test on our app and we compared it with DroidLa, the most popular\/secure QR code reader app. The results show that our app has nice features, such as ease of use, provides security trust, is effective and efficient.<\/jats:p>","DOI":"10.3390\/info11040217","type":"journal-article","created":{"date-parts":[[2020,4,16]],"date-time":"2020-04-16T13:01:39Z","timestamp":1587042099000},"page":"217","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":50,"title":["Security and Privacy of QR Code Applications: A Comprehensive Study, General Guidelines and Solutions"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2908-5418","authenticated-orcid":false,"given":"Heider A. M.","family":"Wahsheh","sequence":"first","affiliation":[{"name":"DAIS, Universit\u00e0 Ca\u2019 Foscari Venezia, 30172 Venezia, Italy"},{"name":"College of Computer Sciences and Information Technology, King Faisal University, Al-Hassa 31982, Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Flaminia L.","family":"Luccio","sequence":"additional","affiliation":[{"name":"DAIS, Universit\u00e0 Ca\u2019 Foscari Venezia, 30172 Venezia, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2020,4,16]]},"reference":[{"key":"ref_1","unstructured":"Denso Wave (2020, April 16). QRcode.com DENSO WAVE. Available online: http:\/\/www.qrcode.com\/en."},{"key":"ref_2","unstructured":"Zara Rizwan (2020, April 16). Do People Use QR Codes in 2017? The Answer Will Definitely Surprise You. 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