Customer Data Breaches at Major Telecommunications Providers
Sector Threat Intelligence · 2 sources · Updated 4mo ago · First seen Nov 28, 2025

British telecommunications company Brsk confirmed unauthorized access to one of its customer database systems, resulting in the exposure of over 230,000 customer records. The stolen data, which was advertised for sale on a cybercrime forum, included full names, email and home addresses, installation details, location data, phone numbers, and indicators of vulnerability status. Brsk stated that no financial information, passwords, or account credentials were compromised, and there is no evidence of misuse so far. The company has notified affected customers, offered them 12 months of free monitoring services, and reported the incident to relevant authorities, including the ICO and police.
Separately, Comcast agreed to pay a $1.5 million fine to settle an FCC investigation into a February 2024 vendor data breach that exposed the personal and financial information of nearly 275,000 customers. The breach occurred at Financial Business and Consumer Solutions (FBCS), a former debt collection vendor, and included names, addresses, Social Security numbers, dates of birth, and account numbers. Comcast has committed to enhanced vendor oversight, regular risk assessments, and improved compliance reporting as part of the settlement. Both incidents highlight the ongoing risks to customer data in the telecommunications sector, whether from direct attacks or third-party vendor breaches.


