Main Risks of QR Codes
A QR code itself cannot infect a device with a virus — it's just text encoded in an image. The main danger is where the link leads. Attacks via QR are usually related to phishing — impersonating legitimate sites.
Attack Example: URL Masking
Malicious actors can place a QR code leading to a fake page that imitates a bank website or messaging service. The victim enters their data, which is then stolen.
How to Check URL Before Opening
Most modern smartphones show the URL before navigating. Always check the address: make sure the domain matches the expected site. Beware of short links — they can hide suspicious URLs.
How to Protect Users
For businesses, it's important to place QR codes only on official materials and controlled sources. Don't scan codes from suspicious stickers in public places.
Recommendations for Business
Use only verified QR code generators. Regularly update links in dynamic codes. Inform customers about proper QR code usage.