View all newsletters
Receive our newsletter - data, insights and analysis delivered to you

Breach at Epsilon exposes Citigroup, Walgreen customers

Data breach could give rise to 'phishing' attacks

By CBR Staff Writer

Personal details of customers of large US companies including Citigroup and Walgreen are feared to have been compromised in a massive and growing data breach of online marketer Epsilon.

The breach, which security experts have termed as one of the biggest in US history, may have exposed the names and e-mail addresses of College Board students as well.

Alliance Data Systems subbsidiary Epsilon has said that on 30 March, "A subset of Epsilon clients’ customer data [was] exposed by an unauthorized entry into Epsilon’s email system."

However, the company said that financial information was safe.

It said, "The information that was obtained was limited to email addresses and/or customer names only," adding that "no other information associated with those names was at risk."

Fears of "phishing" or phony e-mails are pushing affected companies to warn their customersof a possible leak of information.

Content from our partners
Rethinking cloud: challenging assumptions, learning lessons
DTX Manchester welcomes leading tech talent from across the region and beyond
The hidden complexities of deploying AI in your business

Citigroup has started warning its customers of the breach through its website. The College Board has warned students against divulging personal information solicited by e-mails. Walgreen and Kroger have also issued similar warnings.

Verizon Communications, Blackstone Group LP’s Hilton Hotels, Kraft Foods and AstraZeneca are some of Epsilon’s other clients.

The company has said that an investigation on the breach is on.

 

Websites in our network
Select and enter your corporate email address Tech Monitor's research, insight and analysis examines the frontiers of digital transformation to help tech leaders navigate the future. Our Changelog newsletter delivers our best work to your inbox every week.
  • CIO
  • CTO
  • CISO
  • CSO
  • CFO
  • CDO
  • CEO
  • Architect Founder
  • MD
  • Director
  • Manager
  • Other
Visit our privacy policy for more information about our services, how Progressive Media Investments may use, process and share your personal data, including information on your rights in respect of your personal data and how you can unsubscribe from future marketing communications. Our services are intended for corporate subscribers and you warrant that the email address submitted is your corporate email address.
THANK YOU