Mint Mobile, a #US based telecommunications company, disclosed a #databreach after an unofficial person accessed customer's accounts information & ported some phone numbers. The company notified impacted customers through a mail that said, « An unauthorized person gained access to the company's systems and ported a 'small (?) number' of phone numbers between June 8th and June 10th 2021 » However, the company did not disclose how hackers accessed the customer's data.

https://www.secureblink.com/cyber-security-news/mint-mobile-suffered-a-data-breach-enabling-attackers-to-port-numbers