A data breach impacting a third-party provider has affected major Dutch organizations including Ajax football club, bank ING, and eyewear retailer Ace & Tate. The breach involves the compromise of data used for marketing purposes and customer interactions. ING stated that names, email addresses, and phone numbers may have been accessed, but no bank account details were compromised. Ace & Tate confirmed similar data exposure for a subset of its customers. Ajax is investigating the extent of the breach and notifying affected individuals. The companies are working with cybersecurity experts to contain the incident and reinforce data protection measures, urging customers to remain vigilant against potential phishing attempts. Further investigation is underway to determine the full scope and impact of the breach.