Learn how to access information from a QR code, and discover the benefits and risks of this latest advancement.

Development of the QR Code

We’re all familiar with the ordinary barcode, a system of upright lines in varying widths. Barcodes relay information in a scannable format — for example, the grocery store scanner that picks up inventory and pricing information by reading the product barcode.

In 1994, an employee at a Japanese automotive plant devised the square-shaped QR code, also known as a two-dimensional matrix barcode. Its grid-like pattern of shapes can store more information and is easier to read from any angle. The original QR code was used by manufacturing businesses but quickly became a valuable tool for multiple industries.

QR codes experienced slow but steady growth until COVID-19, when their use as a touchless way to distribute information attracted widespread attention.

QR Code Applications

Most QR codes accessed by the average person direct the user to a website. This process happens almost instantaneously, saving time and the hassle of typing in web addresses. Once you visit the website, you can access different types of information. Some common uses for QR codes include:

• Viewing restaurant menus
• Accessing and completing surveys
• Browsing a company’s products or services
• Paying for parking or entry tickets

The QR code can be printed on various advertising media, such as posters, pamphlets and books, and affixed to signs and tables. It can also be sent via email.

QR codes that take you to a website require an internet connection to work. At Bethesda Gardens Hickory Villa in Omaha, Nebraska, you have access to Wi-Fi. You’ll need a smartphone with a cellular service plan if you're away from Hickory Villa.

How to Use a QR Code

You must scan a QR code with an approved device in order to access its information. Most people do this through their smartphones, iPads or tablets. New smartphones scan QR codes using the camera function. Older phones may require a separate QR reader app. It’s easy to see if your phone has the QR reading capability by performing a test scan. The procedure is similar for Android and iPhones. If you have any difficulty with the steps below, check your smartphone’s camera setting to make sure the ability to scan QR codes is enabled.

1. Open your camera app on your phone.
2. Hover the camera over the QR code.
3. Watch for a pop-up link to appear on the screen.
4. Touch the link to access the content.

As an example, suppose you're dining at a nearby Omaha restaurant. On the table is a sticker with a QR code. Using your camera app, point at the sticker. A website address for the restaurant appears in the lower portion of the screen. Tap on it and you’re directed to the restaurant’s menu.

You scroll through the different offerings until the server arrives to take your order. The restaurant saves time and money by eliminating the need for menus or an additional tableside visit. You have more time to browse options and can pass on handling the menus.

How to Minimize QR Code Risks

Like any technology, risks as well as benefits are associated with the use of QR codes. Cybercriminals can create QR codes that take you to false or dangerous websites. If you divulge personal information or accidentally click on downloadable malware, you risk identity theft or viruses.

Fortunately, some common sense and everyday caution can help keep your information safe. Start by considering the source of the QR code. Restaurants, doctor’s offices and advertisements for reputable companies are all probably fine.

QR codes found on public notices and street signs may be altered, sending you to a different website altogether. Look carefully for indications that a sticker or tape is atop the original symbol.

QR codes may be attached to spamming emails. Avoid scanning QR codes in unknown emails, just as you wouldn't click on suspicious links or respond to requests for money.

Once you’ve accessed a website via a QR code, take time to check it over. Look for misspellings or any unusual design elements that can indicate a fraudulent site. Never give out personal information or supply login credentials to any site.

Finally, make sure the privacy settings on your smartphone and devices limit the information various apps and programs collect. Most apps don’t need continued or even temporary access to browsing history, contacts, location or microphone. Periodically check which apps you've given access permissions to ensure you aren’t oversharing.