Security on Guide to Credit Cards, Smartphone Payments, and Rewards in Japan

Safe Code Payment Practices: Security Tips and Savings

Fri, 03 Jul 2026 10:00:00 +0900

QR code payments offer unmatched convenience, but they also introduce security risks if you are not careful. Summer outings increase your mobile payment usage, making now the perfect time to review safety practices. Here is how to stay secure while still getting the best deals.

Essential Security Settings

Always enable a passcode or biometric lock (fingerprint or face recognition) on your payment app. This prevents unauthorized access if your phone is lost or stolen. Keep both the app and your phone OS updated. Avoid using code payment apps on public Wi-Fi; if you must, use a VPN for an extra layer of protection.

Preventing Credit Card Fraud and Understanding Insurance Coverage

Sat, 16 May 2026 13:45:00 +0900

With phishing scams and data breaches on the rise, credit card fraud is a constant concern. We outline critical security measures to safeguard your card details and explain how card insurance protects you if fraud occurs.

Key Security Best Practices

Choose Numberless Cards: Cards without printed card numbers or security codes (e.g. Sumitomo Mitsui Card NL) eliminate over-the-shoulder theft risks.
Enable Real-Time Alerts: Configuring push notifications for card transactions lets you spot unauthorized charges immediately.
Avoid Suspicious Websites: Never click direct links in SMS or phishing emails. Use official bookmarks or apps instead.

How Fraud Protection / Theft Insurance Works

Virtually all Japanese credit cards come with fraud protection that voids unauthorized charges.

Mobile Payment Security Measures: Settings for Safe Use

Tue, 12 May 2026 13:55:00 +0900

Carrying only a smartphone is incredibly convenient. Yet, concerns like “What if my phone gets stolen?” or “Could someone drain my bank account?” prevent some from making the switch. We detail the essential security configurations to keep your money safe.

Essential Security Settings

1. Set Biometric Screen Locks

Ensure your smartphone itself is protected by face recognition or fingerprint locks. Never leave it passcode-free.

2. Activate App-Level Launch Locks

Most payment apps allow you to require a fingerprint or face scan every time the app is opened. Turn this on.