A QR code (quick-response code) is a type of two-dimensional matrix barcode. It was invented in 1994 by the Japanese company Denso Wave for labeling automobile parts. These codes store data such as website links, phone numbers, or coupons. You’ve probably seen them on menus, billboards, and business cards.
Companies use QR codes in print materials to link users to websites, promotional content, or special offers. Restaurants even include the codes on menus for detailed dish information.
These matrix barcodes facilitate secure transactions. Payment apps generate QR codes for users to scan when making purchases. Artists incorporate QR codes into their work, revealing hidden messages or interactive experiences when scanned. They’re also part of architectural designs and urban art installations.
Teachers create QR codes for study materials, quizzes, and additional resources. Museums use them next to exhibits for historical context or multimedia content.
Professionals include QR codes on business cards, linking to their LinkedIn profiles or personal websites. Job seekers add codes to resumes.
QR codes are inherently safe and secure as a technology, but there are important considerations to ensure their safety. Here are some best practices:
Generate QR Codes Safely:
– Use a reputable, secure QR code generator to create unique and private codes.
– Customize your QR code with brand colors and logos to enhance authenticity and discourage hackers.
SSL Certify Your Website:
– An SSL certificate authenticates your website’s identity and enables encrypted connections. Users recognize the padlock symbol, indicating a secure site.
Password Protection:
– If sharing private documents or exclusive content, set up QR codes with password protection. Users must enter the correct password to access information.
Check QR Codes Periodically:
– If you display QR codes publicly, inspect them for signs of tampering. Criminals may cover your QR code with their own, leading users to malicious websites.
Remember that QR codes themselves cannot be hacked; the risks arise from the destination URLs. By following these practices, you can use QR codes safely and ethically.