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QR codes

12 articles

ASCII art in phishing emails
  • phishing

A lost art finds its way into phishing emails

Phishers using ASCII art to mask QR-codes.

  • Roman Dedenok

  • May 21, 2026

I never ordered this: fraud with delivered packages and letters — brushing and quishing
  • scam

The scam on your doorstep

Brushing, quishing, and other fraud schemes that begin with the delivery by courier of a product you never ordered.

  • Stan Kaminsky

  • August 15, 2025

Technology to check QR codes for phishing
  • phishing

Checking QR codes in emails

We’ve added technology that checks QR codes in emails for phishing links.

  • Roman Dedenok

  • March 10, 2025

Phishing-as-a-Service through Telegram bot
  • phishing

Automated phishing

Telegram bot sells subscriptions to phishing tools to hack Microsoft 365 accounts, including 2FA bypass.

  • Alanna Titterington

  • August 9, 2024

Why you shouldn’t scan QR codes in emails
  • QR codes

Received an email with a QR code? Watch out!

Examples of how QR codes in emails are used for phishing.

  • Roman Dedenok

  • October 20, 2023

Are QR codes dangerous?
  • QR codes

(Un)safe QR codes

Why QR codes can be dangerous, and how not to spend US$20,000 on… bubble tea.

  • Anastasia Starikova

  • August 29, 2023

Phishing QR-code attack on QQ users
  • QR codes

Phishing QR-code attack on QQ users

How scammers hijacked QQ accounts in a phishing QR-code attack.

  • Anastasia Starikova

  • July 1, 2022

Package for you. Please scan the QR code
  • scam

“Package for you. Please scan the QR code”

How cybercriminals extract bank card details pretending to be DHL.

  • Roman Dedenok

  • June 29, 2022

Forgers are selling counterfeit Green Passes over the Internet, but we don’t recommend buying the forged European certificates — here’s why
  • QR codes

Forged Green Pass from the Internet — what can go wrong

Some forged Green Pass certificates on sale on the Internet pass validation tests. However, it’s still not a good idea to buy them, and here’s why.

  • Serge Malenkovich

  • October 28, 2021

How QR codes can be dangerous and why you should scan them with caution
  • QR codes

QR: Quick response or quite risky?

We explain how to avoid getting burned by QR codes.

  • Hugh Aver

  • May 5, 2021

Never post tickets with barcodes online!
  • barcodes

Never post tickets with barcodes online!

One Instagram post with a picture of a ticket can cost you a whole lot of time and money and ruin your day. This is how you can avoid it

  • Kate Kochetkova

  • August 25, 2016

Microsoft’s new Blue Screen of Death might be even worse news than before
  • BSOD

Microsoft’s new Blue Screen of Death might be even worse news than before

Windows is in the process of rolling out new changes to the fabled BSOD (‘Blue Screen Of Death’) which could have security implications.

  • David Buxton

  • April 20, 2016

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