A QR code, or quick-response code, is a scannable barcode that looks like a random combination of squares inside a larger square and is usually black and white. QR codes can store information like links, text, files, or login portals, which viewers can access using a smartphone camera, QR code reader, or other scanning device.

How does quishing differ from phishing?

Quishing is a type of phishing, but whereas traditional phishing methods usually involve clicking a link, quishing involves scanning a QR code. In both types of cyberattacks, hackers impersonate legitimate entities to trick people into revealing sensitive information like passwords, credit card numbers, or personal data.

QRLjacking is a type of quishing that takes advantage of sites that allow you to log in via a QR code. Instead of logging you in, QRLjacking lets cybercriminals hijack your session and take over your account.

What is quishing? Learn to spot QR code phishing

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