Categories: SecurityWorkspace

Citigroup Reports Another Card Breach

Eight weeks after a hacker cracked Citigroup’s credit card database, the company’s credit card unit in Japan, Citi Card, reported in a message to its user base on 5 August that “certain personal information of about 92,400 customers has allegedly been obtained and sold to a third party illegally”.

This breach, however, apparently did not involve online hacking. Citigroup told police that a person involved in a company to which Citi Cards outsourced part of its business had illicitly obtained the information and sold it to a third party.

No unauthorised use

Information made vulnerable includes account numbers, names, addresses, phone numbers, dates of birth, gender and the date the account was opened. Citi revealed that personal identification numbers and security codes (CVV, or Card Verification Value, data) were not compromised.

Despite the data theft, no unauthorised use of the cards had been reported by the end of business on 5 August, the Kyodo News reported.

On 15 June, Citigroup reported in a letter to customers that 360,083 credit card accounts were accessed as a result of an online data breach. Citigroup originally reported June 9 that “roughly 1 percent” of its 21 million credit card accounts had been accessed by hackers, or about 210,000 accounts.

As a result of that attack, Citi disclosed that hackers stole $2.7 million (£1.6m) from about 3,400 customers in North America in May following a major data breach. Citi was criticised for not reporting the breach sooner.

Chris Preimesberger

Editor of eWEEK and repository of knowledge on storage, amongst other things

Recent Posts

Amazon Joins Bidders To Acquire TikTok In US

But will Beijing or ByteDance allow sale? Amazon joins potential bidders for TikTok in US,…

2 hours ago

Elon Musk Dismisses Reports Of Imminent Departure From DOGE

Elon Musk dismisses report that Trump told cabinet that he expects Musk to leave his…

4 hours ago

Mark Zuckerberg Lobbies Trump To Avoid Antitrust Trial – Report

Mark Zuckerberg is reportedly lobbying President Donald Trump for a settlement to avoid antitrust trial…

5 hours ago

Bitcoin Slides To $81,000 In Trump Tariff Shock

As global markets reel from Trump's tariffs, the price of Bitcoin slides as investors seek…

6 hours ago

Amazon’s First Project Kuiper Satellites Slated For 9 April Launch

Rival for Starlink and OneWeb. United Launch Alliance slated to send 27 Kuiper satellites into…

8 hours ago

Trump’s Tariffs: Implications For Tech Sector

Semiconductor imports are free of Trump's tariff war, but concerns remain over imports of smartphones…

9 hours ago