Coinbase breach linked to customer data leak in India, sources say

Cryptocurrency exchange Coinbase knew as far back as January about a customer data leak at an outsourcing company connected to a larger breach estimated to cost up to $400 million, six people familiar with the matter told Reuters.

At least one part of the breach, publicly disclosed in a May 14 SEC filing, occurred when an India-based employee of the US outsourcing firm TaskUs was caught taking photographs of her work computer with her personal phone, according to five former TaskUs employees.

Three of the employees and a person familiar with the…