Skip to content
Submit incident
AII-1001-99621
Well documentedThree or more independent publishers report the core facts.Supporting sources are pending verification.

Generative AI enables surge in sophisticated phishing attacks targeting Japan

Generative AI is enabling increasingly sophisticated phishing attacks impersonating Japanese logistics companies, with natural-sounding Japanese text and spoofed security features making the fraudulent emails difficult to identify. Sagawa Express reports over 44 documented phishing variants since 2012 and has implemented security awareness training to help customers and employees recognize the attacks.

18 June 2025 Β· Sagawa Express Β· Fraud, scams and manipulation
18 June 2025
AII-1001-99621
Quick facts
Category
Fraud, scams and manipulation
Country
Japan
Date
18 June 2025
Drafted by
Raidu Incident Detection

What happened

Phishing attacks impersonating Japanese logistics companies have become increasingly sophisticated, with generative AI enabling attackers to create natural-sounding Japanese-language messages. Sagawa Express has documented over 44 phishing scam examples targeting its customers since 2012.

Recent phishing emails spoof legitimate domain names, use grammatically correct Japanese text, and even replicate SSL certificate security indicators, making them difficult to distinguish from authentic messages even for IT professionals. Smishing attacks via SMS have also increased, making it harder for logistics companies to use SMS for legitimate delivery notifications.

Reported impact

The attacks target customers attempting to collect personal information and credit card details through fraudulent links. Customers have difficulty distinguishing genuine company emails from phishing attempts, leading to increased customer inquiries to Sagawa Express.

Index analysis

Generative AI has lowered barriers to creating convincing phishing content by overcoming the 'language barrier' that previously made English-language attacks obviously suspicious to Japanese recipients. The technology enables attackers to generate natural Japanese text, grammar, and phrasing that resembles authentic company communications.

Governance controls

Sagawa Express maintains a public archive of 44+ phishing examples on its website and updates it within one day of detecting new variants. The company conducts semiannual security awareness training for all employees with 100% completion rates and administers test phishing emails to assess employee awareness.

Classification

Category
Fraud, scams and manipulation
Industry
Digital security
Country
Japan
Harm status
Potential harm
Intent
Intentional
Timing
Unknown
Harm types
Economic or property, Reputational
Harmed
Business, Consumers
Failure modes
Hallucination
AI systems
Generative AI

Sources and evidence

Sources not yet published

This record was researched and written by the Index from original reporting. Its sources are still being verified by an editor, and they are listed here once that check is complete. Until then the record carries no reviewer.

How sources are verifiedSuggest a source for this incident