“We used a rep that literally done all the work for us,” one of the sources told Motherboard. The second source added they paid the Twitter insider. Motherboard granted the sources anonymity to speak candidly about a security incident. A Twitter spokesperson told Motherboard that the company is still investigating whether the employee hijacked the accounts themselves or gave hackers access to the tool.

The accounts were taken over using an internal tool at Twitter, according to the sources, as well as screenshots of the tool obtained by Motherboard. One of the screenshots shows the panel and the account of Binance; Binance is one of the accounts that hackers took over today. According to screenshots seen by Motherboard, at least some of the accounts appear to have been compromised by changing the email address associated with them using the tool.

In all, four sources close to or inside the underground hacking community provided Motherboard with screenshots of the user tool. Two sources said the Twitter panel was also used to change ownership of some so-called OG accounts—accounts that have a handle consisting of only one or two characters—as well as facilitating the tweeting of the cryptocurrency scams from the high profile accounts.