Cyberattack exposes 10 million records at US health insurer Excellus

Hackers gained administrative access to the company's IT systems

Hackers have penetrated the IT systems of U.S. health insurer Excellus BlueCross BlueShield and gained access to personal, financial and medical information of more than 10 million people, the company disclosed Thursday.

The initial attack occurred in December 2013, but the company did not learn about it until Aug. 5. Since then it has been working with the FBI and cybersecurity firm Mandiant to investigate the breach.

The hackers may have had access to customer records which include names, addresses, telephone numbers, dates of birth, Social Security numbers, member identification numbers, financial accounts and medical claims information.

Records may contain all or just some of that information, depending on the customer's relationship with the company. The breach doesn't affect just Excellus members, but also members of other Blue Cross Blue Shield plans who sought medical treatment in the upstate New York area serviced by the company.

The information was encrypted, but the attackers gained administrative privileges to the IT systems, allowing them to potentially access it, the company said on a website that was set up to provide information about the incident.

No evidence has been found yet that the data was copied or misused by the attackers.

Excellus will send breach notification letters via mail to all affected persons throughout the month and is offering free credit monitoring and identity protection services for two years through a partner.

The company will not contact affected individuals via email or telephone, so any emails or phone calls claiming to be from the company in regard to this attack should be ignored as they are probably scams.

After a major data breach, it is common for cybercriminals to send emails that seek personal and financial information or which carry malicious attachments.

The incident comes after three other Blue Cross Blue Shield health insurers -- Anthem, Premera and CareFirst -- announced large data breaches this year as a result of cyberattacks.

Security researchers from Symantec attributed the Anthem breach to a sophisticated cyberespionage group of Chinese origin dubbed Black Vine that has access to exploits for previously unknown vulnerabilities. Bloomberg reported that the same group was responsible for the breach at the U.S. Office of Personnel Management (OPM) that affected 21.5 million current and former U.S. government employees.

Excellus said that it doesn't have sufficient information about the Anthem, Premera and CareFirst investigations in order to comment about possible connections between those attacks and the one against its own systems.

Join the Good Gear Guide newsletter!

Error: Please check your email address.

Our Back to Business guide highlights the best products for you to boost your productivity at home, on the road, at the office, or in the classroom.

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Lucian Constantin

IDG News Service
Show Comments

Essentials

Microsoft L5V-00027 Sculpt Ergonomic Keyboard Desktop

Learn more >

Lexar® JumpDrive® S57 USB 3.0 flash drive

Learn more >

Mobile

Lexar® JumpDrive® S45 USB 3.0 flash drive 

Learn more >

Exec

Lexar® JumpDrive® C20c USB Type-C flash drive 

Learn more >

HD Pan/Tilt Wi-Fi Camera with Night Vision NC450

Learn more >

Audio-Technica ATH-ANC70 Noise Cancelling Headphones

Learn more >

Lexar® Professional 1800x microSDHC™/microSDXC™ UHS-II cards 

Learn more >

Budget

Back To Business Guide

Click for more ›

Most Popular Reviews

Latest News Articles

Resources

PCW Evaluation Team

Michael Hargreaves

Windows 10 for Business / Dell XPS 13

I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.

Aysha Strobbe

Windows 10 / HP Spectre x360

Ultimately, I think the Windows 10 environment is excellent for me as it caters for so many different uses. The inclusion of the Xbox app is also great for when you need some downtime too!

Mark Escubio

Windows 10 / Lenovo Yoga 910

For me, the Xbox Play Anywhere is a great new feature as it allows you to play your current Xbox games with higher resolutions and better graphics without forking out extra cash for another copy. Although available titles are still scarce, but I’m sure it will grow in time.

Kathy Cassidy

STYLISTIC Q702

First impression on unpacking the Q702 test unit was the solid feel and clean, minimalist styling.

Anthony Grifoni

STYLISTIC Q572

For work use, Microsoft Word and Excel programs pre-installed on the device are adequate for preparing short documents.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?