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QR codes are safe when used properly if and only if:

Scan from reputable source.

Use platform support two-layer security, encryption SSL/HTTPS.

Check the link before accessing, especially with public QR code.

Mã QR (Quick Response Code) is form two-dimensional (2D) barcodes do Denso Wave (Japan) developed, allowing for quick data storage and retrieval. This is one Modern data encryption technology, allows for quick storage and retrieval of information and safe, in accordance with the standard ISO/IEC 18004.

QR codes can contain information such as URL, vCard, WiFi, and supports scanning with smartphone. Currently, QR codes are widely used in electronic payment, marketing, and anti-counterfeiting.

Scan with built-in Camera
Open the Camera app, aim at the QR code, and tap the notification that appears. If it doesn't work, check your settings and enable QR scanning.

Use the built-in Scanner
On Android (Samsung, Xiaomi), access the scanner from the quick toolbar. On iOS, open Control center and select the “QR Code Scanner” icon.

Scan with Google Lens (Android)
Open Google Lens from Camera or Google app, point at the QR code and select the desired action.

Use Third Party Applications
If your device doesn't have a scanner, download an app like: iCheck Scan, open and scan the QR code.

Scan QR code from image
On Android, open the photo with Google Photos and select “Google Lens”. On iOS, use the app Note or third-party tools.

Step 1 - Choose a content type
Select the content type for the QR code, incl URL, vCard, PDF, WiFi, Email, Social Media (Facebook, Instagram, TikTok…). This helps the QR code work properly when scanned.

Step 2 - Customize the QR code
Personalize QR codes with colors, logos, shapes to match the brand. iCheckQR offers many design options to help QR codes stand out and be easily recognized.

Step 3 - Save and download
Once the design is done, download the QR code with the format PNG, SVG, EPS, PDF. PNG is suitable for displaying on the web, SVG and EPS are for printing, PDF makes it easy to attach documents.

Step 4 - Test and use
Before use, check the QR code with phone or scanning software to ensure accurate scanning. You can then print it on packaging, business cards, or share it online.