Security News > 2021 > December > Fujitsu pins Japanese govt data breach on stolen ProjectWEB accounts

Fujitsu says the attackers behind the May data breach used a vulnerability in the company's ProjectWEB information-sharing tool to steal accounts from legitimate users and access proprietary data belonging to multiple Japanese government agencies.
The National Cyber Security Center of Japan and the country's Ministry of Land, Infrastructure, Transport, and Tourism revealed at the time that the threat actors gained access to at least 76,000 email accounts during the ProjectWEB breach.
Today, the company announced that the breach investigation uncovered several security vulnerabilities the attackers could have used to gain access to ProjectWEB accounts.
As further discovered during an internal review, they gained unauthorized access by stealing legitimate users' ProjectWEB accounts which made it possible to blend in and evade detection.
"One of these was used to illegitimately obtain legitimate IDs and passwords to make unauthorized access to ProjectWEB in such a way that it appeared like an authorized user was accessing the tool through normal channels of authentication and communication," Fujitsu said.
Fujitsu is a Japanese multinational technology company with over 126,000 employees in more than 100 countries.
News URL
Related news
- The quiet data breach hiding in AI workflows (source)
- Hertz confirms customer info, drivers' licenses stolen in data breach (source)
- Hertz data breach: Customers in US, EU, UK, Australia and Canada affected (source)
- Landmark Admin data breach impact now reaches 1.6 million people (source)
- Entertainment services giant Legends International discloses data breach (source)
- 2025 Data Breach Investigations Report: Third-party breaches double (source)
- Yale New Haven Health data breach affects 5.5 million patients (source)
- Frederick Health data breach impacts nearly 1 million patients (source)
- Baltimore City Public Schools data breach affects over 31,000 people (source)
- VeriSource now says February data breach impacts 4 million people (source)