Cloudflare says state-backed hackers tried to burrow into its global network

The keyboard of a computer is pictured at a computer shop in Ciudad Juarez, October 19, 2017. Picture taken October 19, 2017. REUTERS/Jose Luis Gonzalez/File Photo

WASHINGTON (Reuters) - Internet firm Cloudflare said in a statement on Thursday that an advanced group of hackers tried to burrow deep into its global network late last year but were thwarted.

The company, which did not identify the hackers, said in a blog post that it had discovered the intruders on Thanksgiving in late November and ejected them the following day. The spies were able to access "some documentation and a limited amount of source code" but Cloudflare said the operational impact of the intrusion was "extremely limited."