Japanese Firms Face Widespread Data Leak Risks, Survey Reveals
A recent survey by Teikoku Databank Ltd. found that 30.2% of large Japanese companies have experienced data leaks or suspected leaks, whether through cyberattacks or human error. The issue affects businesses of all sizes, with 16.2% of all surveyed firms reporting confirmed or potential incidents.
Over the past year alone, 5.5% of companies acknowledged leaks, while 14.8% admitted uncertainty about whether they had been compromised highlighting gaps in detection and awareness. Human error emerged as a key factor, with cases including misdirected emails and phishing scams. One company reported sending sensitive information after receiving a fraudulent but urgent-sounding email, bypassing verification.
Small and medium-sized enterprises (SMEs) cited financial and staffing limitations as barriers to implementing robust security measures. The survey, conducted from October 9–14, gathered responses from 1,328 companies, underscoring the persistent risks of data exposure across Japan’s corporate sector.
Source: https://english.kyodonews.net/articles/-/88698
Teikoku Databank, Ltd. cybersecurity rating report: https://www.rankiteo.com/company/teikoku-databank-ltd.
"id": "TEI1792398524",
"linkid": "teikoku-databank-ltd.",
"type": "Breach",
"date": "10/2026",
"severity": "60",
"impact": "3",
"explanation": "Attack with significant impact with internal employee data leaks"{'affected_entities': [{'location': 'Japan',
'size': ['Large', 'Small and Medium'],
'type': ['Large Companies', 'SMEs']}],
'attack_vector': ['Human Error', 'Phishing Scams'],
'data_breach': {'type_of_data_compromised': 'Sensitive information'},
'description': 'A recent survey by Teikoku Databank Ltd. found that 30.2% of '
'large Japanese companies and 16.2% of all surveyed firms have '
'experienced data leaks or suspected leaks, whether through '
'cyberattacks or human error. Human error, including '
'misdirected emails and phishing scams, was a key factor. SMEs '
'cited financial and staffing limitations as barriers to '
'robust security measures.',
'impact': {'data_compromised': 'Sensitive information'},
'lessons_learned': 'Gaps in detection and awareness, financial and staffing '
'limitations hinder robust security measures.',
'post_incident_analysis': {'root_causes': ['Human Error',
'Phishing Scams',
'Financial and Staffing '
'Limitations']},
'references': [{'source': 'Teikoku Databank Ltd. Survey'}],
'title': 'Japanese Firms Face Widespread Data Leak Risks',
'type': ['Data Leak', 'Phishing']}