Once the QR Code is rendered (what the human eye sees) it can then be scanned/processed for further analysis. QR Codes present a unique challenge for security providers as they appear as an image during mail flow and are unreadable until rendered. Our telemetry showed a 23% increase in attacks using this exploit within one week alone. And while until very recently QR Code phishing attacks were relatively rare, around mid-September 2023, Microsoft Security Research & Threat Intelligence observed a significant increase in phishing attempts related to QR-codes. In 2022, The Federal Bureau of Investigation raised awareness about cybercriminals tampering with QR codes to steal financial funds from victims. You have probably seen them in restaurants, parking lots, and marketing. Over the last few years QR Codes have seen a rise in popularity in legitimate use scenarios, in part due to COVID. The easiest way to think about a QR code is to treat it just as you would a URL.įor example, when this QR code is scanned it will redirect you to the Defender for Office 365 product page. They are most commonly used for taking users to websites, files, or applications. QR codes can contain various types of information, such as website URLs, contact information, product details, and more. In this blog post we’ll share more details on how we’re helping defenders address this threat and keeping end-users safe.Ī QR code (short for "Quick Response code") is a two-dimensional barcode that can be scanned using a smartphone or other mobile device equipped with a camera. Microsoft Defender for Office 365 is continuously adapting as threat actors evolve their methodologies. They often entice unwitting users with seemingly genuine prompts, like a password reset or a two-factor authentication request. These types of attacks are growing and embed QR code images linked to malicious content directly into the email body, to evade detection. QR code phishing campaigns have most recently become the fastest growing type of email-based attack.
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