A QR Code
is a type of machine-readable code composed of a grid of black and white array,
designed to be scanned and decoded by digital devices such as smartphones. Such
as the picture below:
Figure 1.
QR Codes are valuable
tools that streamline processes across various domains and are predominantly
employed for business purposes such as accessing and safeguarding sensitive
information. Unfortunately, Threat actors are aware of this, and found
ways to exploit this knowledge One of them is by a designing system to
intercept data through deceptive QR Codes, often called QR Code Phishing. QR
Code Phishing is a form of attack used by cyber threat actors to deceive
individuals into revealing sensitive information or taking harmful actions.
These malicious QR Codes (Quick Response codes). Recognizing the threat, the
following questions may arise:
·
What is it?
·
What Can it do?
·
How does it work?
·
What is the impact?
·
Example of breach occurs.
·
Is it controllable?
·
What are the solutions to neutralize
the effect?
Addressing these questions will give
us a better understanding of the situation and strategies to counter the
threats posed by QR Code Phishing.
1. What
is it?
QR Code Phishing involves hackers
creating QR Codes that, when scanned by an individual’s smartphone or QR Code
reader app, lead to malicious websites or trigger actions that compromise the
user’s security and privacy.
2. What
Can it do?
QR Code phishing can have several
harmful outcomes including:
·
Leading individuals to fake login pages to
steal their credentials.
·
Initiating the download of malware or
malware or malicious apps onto an individual’s device.
·
Redirecting individuals to websites that
request personal information.
·
Initiating financial transactions without
one consent.
3. How
does it work?
Hackers created QR codes that appear
legitimate but contain malicious payloads. When users scan these codes, they
unknowingly trigger the malicious actions embedded within them. The user's
device interprets the QR code's data and takes actions based on the encoded
information, often without user verification.
4. What
is the impact?
The impact of QR Code phishing can be
significant. Individuals can fall victim to various forms of cybercrime, such
as identity theft, financial fraud, and the compromise of personal data.
Additionally, organizations may suffer reputational damage if attackers use
their branding in phishing campaigns.
5. Examples of a breach occurs.
A prominent energy corporation in the
United States has fallen victim to a phishing operation that managed to evade
email security filters, successfully infiltrating inboxes by introducing
malicious QR codes. As reported by BleepingComputer, the campaign distributed
approximately 1,000 emails, with nearly one-third (29%) of them directed at a
prominent U.S. energy company. The remaining phishing attempts were aimed at
businesses within various sectors, with manufacturing (15%), insurance (9%),
technology (7%), and financial services (6%) being among the targeted
industries. Cofense, the organization
that detected this campaign, has highlighted a significant development – this
marks the first instance where QR codes have been utilized on such a widespread
scale in phishing attempts. This innovation suggests that more malicious actors
may be evaluating the efficacy of QR codes as a novel attack vector. While
Cofense did not disclose the identity of the energy company subjected to this
campaign, they did classify it as a "major" corporation headquartered
in the United States. (Toulas, 2023)
6. Is
it controllable?
While it is challenging to eliminate
the possibility of QR Code phishing, it is controllable to some extent through
security awareness, user education, and secure QR code readers that
check the legitimacy of URLs before loading them.
7. What
are the solutions to neutralize the effect?

To mitigate the risk of QR Code
phishing:
• User
Education: Educate individuals on the risks associated with scanning unknown QR
codes and advise them to verify the source before scanning.
• Secure
QR Code Readers: Use trusted and secure QR code reader apps that
can check the destination URL for legitimacy before opening it.
• Multi-Factor
Authentication (MFA): Enable MFA for sensitive accounts to provide an
additional layer of security.
• Regular
Software Updates: Keep smartphones and QR code reader apps up to date to
patch vulnerabilities.
• Security
Policies: Implement strict security policies in organizations to discourage
employees from scanning unfamiliar QR codes and accessing sensitive information
through them.
Remember that QR Code phishing
can evolve, so it's essential to stay informed about the latest threats and
security best practices to protect against them.
References
Figure 1. What is QR
code and how does it work? Digit Insurance. (2023, August 23). https://www.godigit.com/finance/qr-code/what-is-qr-code-and-how-does-it-work
Toulas, B. (2023, August
16). Major U.S. energy org targeted in QR code phishing attack.
BleepingComputer. https://www.bleepingcomputer.com/news/security/major-us-energy-org-targeted-in-qr-code-phishing-attack/