30 July 2015

Citigroup hackers broke in through the public Website - NYTimes

15 June 2011  |  10478 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
Visa confirms Visa Europe acquisition talk...
9302 views comments | 16 tweets | 23 linkedin
Square reportedly files for IPO
6489 views comments | 16 tweets | 13 linkedin
Banks lag manufacturers and telcos in race...
6473 views comments | 28 tweets | 15 linkedin
ING Bank introduces voice-activated mobile...
6274 views comments | 20 tweets | 26 linkedin
Wells Fargo creates innovation group
5923 views comments | 15 tweets | 9 linkedin

Featured job

to $120K base + bonus
New York City, NY (USA)

Find your next job