Citigroup has acknowledged that hackers broke into its network and stole credit-card information related to tens of thousands of customers in North America, according to several reports. Citigroup has acknowledged that hackers broke into its network and stole credit-card information related to tens of thousands of customers in North America, according to several reports.Hackers gained access to Citi’s Account Online Service to view customer names, account numbers and contact information, including email addresses, according to the Financial Times, which first reported it, along with the Associated Press and Reuters.Citi is contacting customers whose personal data was stolen, though Citi is saying that data did not include birth date, Social Security number, card expiration dates and card security codes. The breach is said to impact about 200,000 bank cardholders in North America.MORE BREACHES: Lockheed Martin acknowledges significant cyberattack The attack on Citi is the latest is a growing cybercrime spree this year that has seen hackers breaking into the networks of EMC’s RSA division, Epsilon, Sony and Lockheed Martin, among others, with what’s believed to be various intentions, either stealing customer data for financial purposes or attempted theft of sensitive information and intellectual property with defense purposes.Read more about wide area network in Network World’s Wide Area Network section. Related content news analysis Companies are already feeling the pressure from upcoming US SEC cyber rules New Securities and Exchange Commission cyber incident reporting rules don't kick in until December, but experts say they highlight the need for greater collaboration between CISOs and the C-suite By Cynthia Brumfield Sep 28, 2023 6 mins Regulation Data Breach Financial Services Industry news UK data regulator warns that data breaches put abuse victims’ lives at risk The UK Information Commissioner’s Office has reprimanded seven organizations in the past 14 months for data breaches affecting victims of domestic abuse. By Michael Hill Sep 28, 2023 3 mins Electronic Health Records Data Breach Government news EchoMark releases watermarking solution to secure private communications, detect insider threats Enterprise-grade software embeds AI-driven, forensic watermarking in emails and documents to pinpoint potential insider risks By Michael Hill Sep 28, 2023 4 mins Communications Security Threat and Vulnerability Management Security Software news SpecterOps to use in-house approximation to test for global attack variations The new offering uses atomic tests and in-house approximation in purple team assessment to test all known techniques of an attack. By Shweta Sharma Sep 28, 2023 3 mins Penetration Testing Podcasts Videos Resources Events SUBSCRIBE TO OUR NEWSLETTER From our editors straight to your inbox Get started by entering your email address below. Please enter a valid email address Subscribe