QR Code Phishing: What Businesses Need to Know

QR codes have become a normal part of every day life. We scan them to view menus, make payments, access event information, download apps, and visit websites. Because they are so familiar, it is easy to assume that scanning a QR code will be harmless.

Cybercriminals are taking advantage of that assumption.

QR code phishing, sometimes called "quishing" is a type of phishing attack that uses a QR code to direct someone to a malicious website of fraudulent login page. The goal is often to steal passwords, financial information, or other sensitive data.

As QR codes become more common, businesses should understand how these attacks work and what employees can do to recognize them.

How Does QR Code Phishing Work?

A QR code itself is not necessarily dangerous. The problem is where the code sends you.

An attacker may create a QR code that looks legitimate and place it in an email, text message, document, poster, or even over a legitimate QR code in a public location. When someone scans it they may be redirected to a fake website designed to look like Microsoft 365, a banking portal, a shipping company, or another familiar service.

For example, an employee might receive an email claiming that their Microsoft 365 account requires verification. Instead of including a traditional phishing link, the email contains a QR code and instructs the employee to scan it with their phone.

The employee scans the code, lands on a convincing login page, and enters their username and password.

The attacker now has their credentials.

Because the QR code is often scanned using a smartphone rather than a company-managed computer, the attack may also bypass some of the security controls employees are accustomed to seeing on their work devices.

Why Are QR Code Phishing Attacks Effective?

One reason quishing works is that people have learned to treat QR codes as convenient shortcuts.

When you scan a QR code, you may not immediately see the full destination before visiting it. Attackers can use that extra step to hide a suspicious URL behind something that appears harmless.

Phishing emails containing QR codes can also sometimes get around traditional email security defenses. Rather than placing a malicious link directly in the email, the attacker places the link behind an image or QR code.

Attackers may also create a sense of urgency. Common examples include messages claiming that:

• Your account will be disabled unless you verify it

• A payment requires confirmation

• Your password is about to expire

• You missed an important package delivery

• You need to review a document

• Your Microsoft 365 account needs attention

The combination of urgency and convenience can make an employee more likely to scan without stopping to verify the request.

Warning Signs to Watch Out For

QR code phishing messages can be difficult to distinguish from legitimate communications, but there are several warning signs.

Unexpected QR codes: Be cautious when a message you were not expecting suddenly asks you to scan a code.

Urgent requests: Messages demanding immediate action should receive extra scrutiny.

Requests for credentials: A QR code that takes you to a login page deserves careful attention, especially if you were not expecting to sign in.

Unusual sender information: Check the sender's email address and look for misspellings, strange domains, or other inconsistencies.

Unexpected physical QR codes: Be careful with QR codes posted in public areas, on parking meters, at restaurants, or over legitimate signs. Attackers can place fraudulent stickers over real codes.

How Businesses Can Reduce the Risk

Employee awareness is one of the most important defenses against QR code phishing.

Before scanning a QR code, employees should ask whether they were expecting it and where it came from. If a message claims that an account needs attention, it is often safer to access the company's website or application directly rather than using the QR code provided.

Businesses should also provide regular security awareness training that includes newer phishing techniques such as quishing. Employees should know how to report suspicious messages and understand that reporting a potential phishing attempt is preferable to ignoring it.

Technical controls also matter. Strong passwords, multifactor authentication, endpoint protection, email security, conditional access policies can help reduce the damage if credentials are compromised.

Think Before You Scan

QR codes are convenient, but convenience should not replace caution.

The next time an email, text message, flyer, or sign asks you to scan a QR code, take a moment to consider where it came from and where it might take you. If something feels unexpected or urgent, verify it through a trusted source before entering any information.

A few extra second of caution can prevent a stolen password, compromised account, or much larger cybersecurity incident.