Feeds

Yahoo! Japan says 22 MEELLION User IDs may have been nabbed

Suspected breach didn't nab passwords but resets nonetheless recommended

Build a business case: developing custom apps

Yahoo! Japan has told its 200 million customers to change their passwords after revealing that 22 million user IDs may have been exposed in a suspected intrusion last week.

The attack was detected at around 9:00 PM local time on Thursday night, with the internet giant apparently cutting access while it checked what had happened.

Reports suggest it discovered an attempt to steal User IDs, with a file containing 22 million potentially exposed.

“We don’t know if the file was leaked or not, but we can’t deny the possibility, given the volume of traffic between our server and external terminals”, Yahoo! Japan said in a statement sent to AFP.

Although the data which may have been compromised apparently doesn’t include passwords and the kind of user data needed to reset passwords, the firm is taking no chances.

Hackers also tried to breach Yahoo! Japan last month in a similar raid on user data, although their motives remain unclear.

Yahoo! Japan is a joint venture between the internet pioneer and Japanese mobile and broadband operator SoftBank, which remains one of the US giant’s few remaining success stories.

In the first quarter of 2013, it was Yahoo!’s Japan JV – in which it has a 33 per cent stake – as well as its 20 per cent investment in China’s Alibaba, which helped the firm to record a 36 per cent year-on-year increase in net income to $390 million (£253.9m). ®

The essential guide to IT transformation

More from The Register

next story
Rupert Murdoch says Google is worse than the NSA
Mr Burns vs. The Chocolate Factory, round three!
e-Borders fiasco: Brits stung for £224m after US IT giant sues UK govt
Defeat to Raytheon branded 'catastrophic result'
Germany 'accidentally' snooped on John Kerry and Hillary Clinton
Dragnet surveillance picks up EVERYTHING, USA, m'kay?
Snowden on NSA's MonsterMind TERROR: It may trigger cyberwar
Plus: Syria's internet going down? That was a US cock-up
Who needs hackers? 'Password1' opens a third of all biz doors
GPU-powered pen test yields more bad news about defences and passwords
Think crypto hides you from spooks on Facebook? THINK AGAIN
Traffic fingerprints reveal all, say boffins
Microsoft cries UNINSTALL in the wake of Blue Screens of Death™
Cache crash causes contained choloric calamity
prev story

Whitepapers

Endpoint data privacy in the cloud is easier than you think
Innovations in encryption and storage resolve issues of data privacy and key requirements for companies to look for in a solution.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Top 8 considerations to enable and simplify mobility
In this whitepaper learn how to successfully add mobile capabilities simply and cost effectively.
Solving today's distributed Big Data backup challenges
Enable IT efficiency and allow a firm to access and reuse corporate information for competitive advantage, ultimately changing business outcomes.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.