CODES: Bar Versus CR Security

Posted on June 13, 2025 by Dr. David Edward Marcinko MBA MEd CMP™

DEFINED

By CoPilot AI

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Barcodes and QR codes are basically two forms of machine-readable codes that contain data and are useful in various sectors such as retail, logistics, and marketing. While both appear to fulfill the function of storing information, they have differences based on structure and storage size as well as the function they perform. This makes it easier for businesses to distinguish what is relevant in barcodes and what is relevant in QR codes so that they can be in a position to adopt the right technology that will suit their needs well.

DENTAL CYBER HACKS: https://medicalexecutivepost.com/2024/09/10/dental-office-cyber-hacks/

What is a Barcode?

Barcode provides us with a way to store numbers in a computer-understandable format. This is used to store information in a 1D or 2D format that can be scanned for data retrieval. It is used by stores’ back-off sweaters for keeping track of the patients just in case of rental car services to track where the car is in cases of airline luggage. 

HEALTHCARE: Cyber Security and Amazon’s Iora Healthcare Quality Down?

Advantages of Barcodes

  • Simplicity: Barcodes are easy to implement and can be put into use within a short span of time and with comparatively less investment.
  • Low Cost: The equipment and technology required in the generation as well as the scanning of the bar codes are relatively cheap.
  • Quick Scanning: As has already been discussed, barcodes are easy to scan and this makes them suitable for_numeric environments such as the retail sector.

Disadvantages of Barcodes

  • Limited Data Capacity: Barcodes also have a limited data processing capability with limited numerical values, of between 8-20 characters per barcode.
  • One-Dimensional: Barcode is more vast than OWLT and cannot contain complex information since it is one-dimensional.
  • Prone to Damage: That is why they can be barely scratched or damaged in such a manner that they will not scan properly.
Barcode - GeeksforGeeks

What is QR code?

QR codes are a way of storing data in the form of computer understandable format, that can be scanned by using QR code scanner to retrieve the data. These are widely used nowadays for cashless and UPI payment services. They can be used in case of identifications and are also used for sharing photos, videos and other files. 

MEDICAL CYBER-SECURITY: https://medicalexecutivepost.com/2022/01/16/understanding-medical-practice-cyber-security-risks-2/

Advantages of QR Codes

  • High Data Capacity: QR codes contain the ability to enclose thousands of characters that include numbers, letters and even the binary data.
  • Small Physical Footprint: In fact, most QR codes are small in size even though they have a high storage capacity thereby making it possible to print them despite the limited amount of space.
  • Error Correction: QR codes are also created with erasure correction, so the code can still be scanned even if SOME of the dots are scratched out.
  • Versatile Applications: According to the functional aspect QR codes can be used in marketing, payments, wither links, multimedia information storage etc.

Disadvantages of QR Codes

  • Requires Specific Software: Unlike barcodes that can be scanned by an ordinary laser scan gun, QR code must be scanned with a QR code scanner or simply an advanced telephone or tablet with a QR code scanner application.
  • Overuse in Marketing: The use of QR codes has been popularized mainly in the marketing sector, hence consumers are used to seeing it and may opt to look the other way.

    QR Code that scans to http://www.geeksforgeeks.org 

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QUISHING: Scams Defined

Posted on June 4, 2025 by Dr. David Edward Marcinko MBA MEd CMP™

QR Code Cyber Security Scams

SPONSOR: http://www.CertifiedMedicalPlanner.org

By Cloudflare and AI

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What is quishing?

Quishing, or QR phishing, is a cybersecurity threat in which attackers use QR codes to redirect victims to malicious websites or prompt them to download harmful content. The goal of this attack is to steal sensitive information, such as passwords, financial data, or personally identifiable information (PII), and use that information for other purposes, such as identity theft, financial fraud, or ransomware.

This type of phishing often bypasses conventional defenses like secure email gateways. Notably, QR codes in emails are perceived by many secure email gateways as meaningless images, making the users vulnerable to specific forms of phishing attacks. QR codes can also be presented to intended victims in a number of other ways.

MISHING: https://medicalexecutivepost.com/2025/02/28/mishing-a-mobile-first-phishing-technique/

What are QR codes?

QR codes, or Quick Response codes, are two-dimensional barcodes that can be scanned easily with a camera or a code reader application. The main component of a QR code is data storage. QR codes have the capability to store significant amounts of information including URLs, product details, or contact information. Scanning technology allows smartphone cameras or code readers to easily and quickly access the website to which the URL points.

SMISHING: https://medicalexecutivepost.com/2025/01/08/smishing-beware-scams/

How does quishing work?

In a quishing attack, the attackers create a QR code and link it to a malicious website. Typically, the attacker will embed the QR code in phishing emails, social media, printed flyers, or physical objects, and use social engineering techniques to entice the victims. For example, victims might receive an email urging them to access an encrypted voice message via a QR code for a chance to win a cash prize.

Upon using their phones to scan the QR code, victims are directed to the malicious site. The site may prompt victims to enter private information, such as login information, financial details, or personal information. In the example above, the site may request the user’s name, email, address, date of birth, or account login information.

Once this sensitive information is captured, attackers can exploit it for various malicious purposes, including identity theft, financial fraud, or ransomware.

What is Cyber-Security SPOOFING and PHISHING?

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