14 February 2016

Citigroup hackers broke in through the public Website - NYTimes

15 June 2011  |  10770 views  |  0 arrow on screen

The hackers who made off with the personal account data of 200,000 Citigroup customers allegedly broke into the bank via its public Website, focussing on a simple vulnerability in the browser address bar.

One of the investigators working on the breach has told the New York Times that the attack was both simple and ingenious.

The NYTimes source, billed as a "security expert familiar with the investigation", said the attackers logged on to the part of the bank's site reserved for credit card customers - and substituted their own account numbers which appeared in the browser's address bar with other numbers. Using a computer-based random number generator, the hackers created tens of thousands of possible account numbers, which opened the door to the profiles of other customers.

Citi confirmed the breach last week, saying that names, account numbers and e-mail addresses had been compromised but not birth dates, social security numbers and card security codes, which are held elsewhere.

Thieves found Citigroup site an easy entry - New York Times

Finextra verdict: If true - and the NYTimes is careful to mask its source - this a truly embarrassing security failure for Citi. Inserting customer account numbers into the visible display bar on the browser is a basic error. Heads must roll.

Comments: (0)

Comment on this story (membership required)
Log in to receive notifications when someone posts a comment

Finextra news in your inbox

For Finextra's free daily newsletter, breaking news flashes and weekly jobs board, sign up now.

Related stories

09 June, 2011

Related company news

 

Top topics

Most viewed Most shared
UK sets out open banking API frameworkUK sets out open banking API framework
16365 views comments | 106 tweets | 91 linkedin
Deutsche Bank calls for co-operation with fintech firms on B2B servicesDeutsche Bank calls for co-operation with...
9123 views comments | 30 tweets | 30 linkedin
How to accelerate your fintech startupHow to accelerate your fintech startup
8715 views comments | 35 tweets | 10 linkedin
Is Paym a failure?Is Paym a failure?
7223 views 16 comments | 23 tweets | 16 linkedin
Visa issues API to offer consumer control over card transactionsVisa issues API to offer consumer control...
6591 views comments | 17 tweets | 28 linkedin

Featured job

Competitive Package
New York City, NY. USA

Find your next job