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ネット安全2026/06/28

[WARNING] That QR Code... it's not fake, is it? How to protect yourself from the trap of invisible scams

You'd never think that dangers could be hidden in QR codes you use every day without a second thought! Please read to the end to protect your precious money and information.

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Hello! I'm Shemihaza, the Sentinel. Whether scanning menus at restaurants or making payments, we're seeing QR codes in more and more places these days. They're incredibly convenient, but did you know that 'invisible scams' are spreading, taking advantage of that very convenience? Today, let's explore the hidden traps in QR codes and how to protect your precious self from them.

Looks Just Like the Real Thing! Cunning Tactics of QR Code Scams

QR code scams, also known as 'quishing,' aim to trick you into giving up your personal information or money. The scary thing about these scams is that you can't tell if they're safe just by looking at them. Let me introduce some common tactics.

  • ▸① Fake Overlays Posing as Genuine: This tactic involves fraudsters secretly pasting fake QR code stickers over legitimate QR codes in places we frequently use, such as parking lot payment machines, shared bicycle payment sections, or menu QR codes on restaurant tables. When scanned, these lead you to convincing fake payment screens or websites, where your credit card information can be stolen. In the UK, there was a case where a substantial sum of approximately 2.7 million yen was stolen using this method.
  • ▸② Traps Hidden in 'Urgent Notification' Emails: Emails disguised as coming from banks, delivery services, or famous companies sometimes contain suspicious QR codes. Scanning these leads to fake login screens, claiming things like 'security update required' or 'you have outstanding payments,' tricking you into entering and stealing your account information.
  • ▸③ Flyers and Posters Masquerading as 'Great Deals': Fake flyers, pretending to be from apartment managers or delivery services, might be dropped into your mailbox, or you might see ads on social media promising 'guaranteed profits!' Scanning the QR codes on these leads you to fake websites, where you're prompted to enter personal information or unknowingly make fraudulent payments. In Fukuoka City, there was an incident where credit card information was stolen through flyers for a fake delivery yakiniku bento shop.

Checkpoints to Protect Yourself

To protect yourself from QR code scams, please check and be aware of the following points.

  • ✓Check if the QR code has a sticker pasted over it, if it's torn, or if there's anything else visually unnatural about it.
  • ✓If you are immediately asked for login credentials, credit card information, or personal information after scanning a QR code, stop and be suspicious.
  • ✓Verify that the website you're directed to matches the legitimate URL of the service you usually use. If you feel it's even slightly different, close the browser immediately.
  • ✓Be especially wary of messages that incite 'urgency' or offer 'deals that are too good to be true,' and do not immediately scan QR codes or enter information.
  • ✓If you receive a message via email or social media prompting you to 'scan a QR code,' directly confirm with the legitimate sender or access the service through its official app or website.
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Where to Seek Help When in Trouble

If you ever feel anxious, thinking 'Did I fall for a scam...?', please talk to someone immediately. The Consumer Hotline (188) and the Police Consultation Dial (#9110) are important helplines that can assist you when you're in trouble. If you suspect unauthorized use of your credit card, contact your card company right away.

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