Carrefour has been the subject of speculation regarding a potential cyberattack that allegedly exposed the data of 13 million customers. Initial reports suggested that this sensitive information was being offered for sale on the dark web. However, Carrefour has publicly denied these claims, stating that, at this stage, there is no evidence of an intrusion into its computer systems. The company aims to reassure its customers that their personal information remains secure. Meanwhile, another data breach involving the hotel industry has also come to light, with reports indicating that data on half a million hotel guests was exposed following a breach at Otelier. Experts have warned that hackers attempted to extort Marriott in connection with this incident.