A major US telecommunications company discovered a foreign implant in a server back in August, according to a new report by Bloomberg. It's the first time a source has decided to go on the record to corroborate the claims made in a report by the publication last week, alleging that Chinese spies were able to compromise servers belonging to 30 of the US's top tech companies through the use of hardware manipulations.

The implant was reportedly built into a server's Ethernet port, giving hackers a back door into the telecommunications company's computer networks. In Bloomberg's discussions with Yossi Appleboum, the security professional who first identified the manipulation, no technicians working for the company knew what kind of data was flowing through the compromised server. That server was one of many in the facility that was created by Supermicro, the same Chinese manufacturer that supplied servers to the tech companies in last week's original report.