WK Kellogg, the company behind the Kellogg’s cereals, has been hit by a major data breach. Cybercriminals from the ransomware group Clop exploited a vulnerability in the software of an external supplier, stealing employees’ personal data.
The data breach took place in December 2024, when data was stolen from the file transfer service Cleo. At the time, Cleo suffered a wave of attacks from Clop. The ransomware gang used zero days to gain access to Cleo servers. Then, on February 27, 2025, Kellogg’s discovered that the attacks may have affected it. The cereal manufacturer used third-party Cleo servers to transfer personnel files to HR service providers, and the attack targeted precisely these servers.
Read more…
Source: Techzine News
Sign up for our Newsletter
The latest news and insights delivered right to your inbox.
Related:
- Data breach at credit check giant 700Credit affects at least 5.6 million
December 12, 2025
At least 5.6 million people had their names, addresses, dates of birth, and Social Security numbers stolen in a data breach at 700Credit, a company that runs credit checks and identity verification services for auto dealerships across the United States. In a statement on its website, the Michigan-based company blamed the October data breach on an ...
- 16TB of corporate intelligence data exposed in one of the largest lead-generation dataset leaks
December 11, 2025
More than 16 terabytes of professional and corporate intelligence data, including personally identifiable information (PII), was sitting in an unprotected database, available to anyone who knew where to look. This is according to cybersecurity researchers at Cybernews who found the database and described it as “one of the largest lead-generation datasets to have ever leaked.” Despite ...
- Petco’s security lapse affected customers’ SSNs, drivers’ licenses and more
December 8, 2025
Last week, pet products and services giant Petco confirmed that it experienced a data breach involving customers’ personal information, without specifying what type of data was affected. On Friday, in a legally required filing with Texas’ attorney general’s office, Petco reported that the affected data included: names, Social Security numbers, driver’s license numbers, financial information such ...
- Freedom Mobile Confirms Customer Data Breach
December 4, 2025
Canadian telecommunications provider Freedom Mobile suffered a supply-chain attack recently, in which it lost sensitive data on a yet undisclosed number of customers. In a data breach notification letter posted on its website earlier this week, Freedom said hackers broke into an account of a subcontractor, through which they accessed personal information “of a limited number” ...
- UK: Information Commissioner’s Office reprimands Post Office for data breach
December 4, 2025
The Information Commissioner’s Office (ICO) has issued a reprimand to the Post Office following a data breach that resulted in the unauthorised disclosure of personal information belonging to hundreds of postmasters involved in the Horizon IT scandal. The breach occurred when the Post Office’s communications team mistakenly published an unredacted version of a legal settlement document ...
- Fintech firm Marquis alerts dozens of US banks and credit unions of a data breach after ransomware attack
December 3, 2025
Fintech company Marquis is notifying dozens of U.S. banks and credit unions that they had customer data stolen in a cyberattack earlier this year. Details of the cyberattack emerged this week after Marquis filed data breach notices with several U.S. states confirming its August 14 incident as a ransomware attack. Texas-based Marquis is a marketing and compliance ...