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2. EU Digital COVID Certificate - Wikipedia

   en.wikipedia.org/wiki/EU_Digital_COVID_Certificate

   EUDCC QR code displayed on a smartphone Sample EU Digital COVID Certificate issued by the Czech Republic. The EU Digital COVID Certificate (EUDCC), best known in Italy as the Green Pass and in France as the Sanitary Pass or Health Pass (passe sanitaire), was a digital certificate that a person has been vaccinated against COVID-19, tested for infection with SARS-CoV-2, or recovered from COVID ...

3. QR code - Wikipedia

   en.wikipedia.org/wiki/QR_Code

   The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [5] [6] [7] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [8] the pattern of position detection was found and determined by applying the least-used ratio (1:1:3 ...

4. COVID-19 apps - Wikipedia

   en.wikipedia.org/wiki/COVID-19_apps

   To ensure data integrity, the QR code is constructed from a JSON Web Signature (JWS). [207] On 28 September 2021, the Citizen Lab published an analysis of COVID-19 data collection practices in Canada, the United Kingdom, and the United States. [142] As of 27 April 2023 the NHS COVID-19 App was discontinued. [208]

5. QR code payment - Wikipedia

   en.wikipedia.org/wiki/QR_code_payment

   A QR code payment is a mobile payment method where payment is performed by scanning a QR code from a mobile app. [1] This is an alternative to doing electronic funds transfer at point of sale using a payment terminal. [2] This avoids a lot of the infrastructure traditionally associated with electronic payments such as payment cards, payment ...

6. Back to school means back to viruses. A doctor explains how ...

   www.aol.com/news/back-school-means-back-viruses...

   The return to classrooms in the fall usually means kids bring back germs along with their homework. Dr. Leana Wen has advice to make the transition easier.

7. EICAR test file - Wikipedia

   en.wikipedia.org/wiki/EICAR_test_file

   The EICAR Anti-Virus Test File[ 1] or EICAR test file is a computer file that was developed by the European Institute for Computer Antivirus Research (EICAR) and Computer Antivirus Research Organization (CARO) to test the response of computer antivirus (AV) programs. [ 2] Instead of using real malware, which could cause real damage, this test ...