Cox Communications has disclosed a data breach after a hacker impersonated a support agent to gain access to customers’ personal information.

A US-based Nokia subsidiary, SAC Wireless, announced a data breach after their networks had been penetrated by the Conti ransomware gang. Over 250 GB of data were stolen while ransomware encrypted their systems before being detected.

A large amount of data that allegedly belongs to AT&T has stirred some controversy as it popped up on the dark web this week.

Another cyber security blow has been dealt to T-Mobile in what seems to be a string of cyber attacks and incidents. A hacker is now claiming to be in possession of personal information data related to over 100 million T-Mobile customers. The data is said to include social security numbers, phone numbers, names, addresses and unique IMEI numbers and drivers’ licenses of T-Mobile customers.