Skip Links

Network World

  • Social Web 
  • Email 
  • Close

Facebook bug leaks members' birthday data

By Robert McMillan , IDG News Service , 07/16/2008

A glitch in a test version of Facebook's Web site inadvertently exposed the birthdays of Facebook's 80 million members this week.

The bug was discovered over the weekend by Sophos Senior Technology Consultant Graham Cluley. While checking out Facebook's new design, Cluley noticed that the birth dates of some of his privacy-obsessed acquaintances were popping up when they should have been hidden.

Facebook allows users to control who sees private information such as their birth date, which can be a valuable nugget of data for identity thieves. But Cluley discovered that the new site was making this information public to other members. "Their new profile page essentially ignored the privacy setting to withhold the data of birth," he said.

"For a brief period of time, a small number of users were able to access a private beta of Facebook's new site design meant only for developers. During that time, some of those users had their birthdays revealed due to a bug," Facebook said Wednesday in a statement. The company could not say exactly how long this data was exposed or how many people viewed the beta site, but the bug was patched within hours of Cluley's discovery.

Facebook may intend for the beta site to be private, but it has been open to the general public for several days. It features a new profile design that should be rolled out as an option to Facebook users some time this week.

Cluley himself did not consider this a major data breach, but he said it should serve as a warning to people who put a lot of information on social networks. "It raises a more serious question which is, 'Can you trust these social networks to look after your data properly?'" he said.

Facebook is sensitive about privacy. In November the company scrambled to fix its Beacon ad system after a CA researcher discovered that the system was collecting data on users' online behavior, despite Facebook's assurances to the contrary.

"With Beacon we just screwed it up," said Matt Cohler, the company's vice president of product management, during a March session with reporters.

Cluley isn't sure that won't happen again. He's telling his friends to just make up a birth date on Facebook from now on.

Partner Content

Brilliantly simple security and control solutions for email, web and endpoint

www.sophos.com

Stopping data leakage

Learn how to exploit your current security investment to control the information that flows into, through and out of your network.

Download the white paper.

Why detection rates aren't enough

Evaluating endpoint security products is a time-consuming and daunting task. Learn the six critical questions you need to ask prospective vendors to get the right endpoint solution.

Download the white paper.

Applications: taking back control

Employees installing unauthorized applications is a growing threat to business security and productivity. Cost-effectively reduce this threat by integrating control into your malware protection.

Learn more today.

Comment
Login
Forgot your account info?
Add comment
Anonymous comments subject to approval. Register here for member benefits.
Have a NetworkWorld account? Log in here. Register now for a free account.

Videos

rssRss Feed

Whitepapers

Magic Quadrant for Application Delivery Controllers

Gartner summarizes its view on Application Delivery Controllers, evaluates strengths and weaknesses...

Vulnerability Management For Dummies

Download this concise book "Vulnerability Management for Dummies," to learn about the simple steps...

The ROI and TCO Benefits of Data Deduplication for Data Protection in the Enterprise

This paper examines and quantifies the costs and benefits of backup with deduplication storage as...

Webcasts

Transforming the Enterprise WAN Edge: Video from Cisco

Life on the edge of your WAN has changed dramatically. With the need to deliver advanced services,...

PoE Plus: Impact on the PoE Market

The standard for Power over Ethernet (PoE), IEEE Std. 802.3af(tm)-2003, advanced networking,...

Harnessing the power of communications to increase workplace performance

Due to the convergence of IT and telecommunications technologies, the business workplace has been...

Special Reports

The Evolution of Network Security

We have so many holes punched in our firewalls today that many industry insiders question the value...

The self-managed network

We aren't there yet, but advances in network and systems management tools are making it possible to...

Get instant email notification when white papers, webcasts, executive guides are added to our library. Stay informed and up-to-date with the latest on IT Technologies with Network World's Resource Alerts.