An internal investigation by a cyber security firm, hired by CBS News, has confirmed that investigative reporter Sharyl Attkisson’s computer was “accessed by an unauthorized, external, unknown party on multiple occasions late in 2012.”

Here’s CBS News’ statement on the investigation:

A cyber security firm hired by CBS News has determined through forensic analysis that Sharyl Attkisson’s computer was accessed by an unauthorized, external, unknown party on multiple occasions late in 2012. Evidence suggests this party performed all access remotely using Attkisson’s accounts. While no malicious code was found, forensic analysis revealed an intruder had executed commands that appeared to involve search and exfiltration of data.This party also used sophisticated methods to remove all possible indications of unauthorized activity and alter system times to cause further confusion.

CBS News is taking steps to identify the responsible party and their method of access.

According to Attkisson’s own bio, she “digs up facts that others don’t want you to have.”

CBS Statement: A cyber security firm hired by CBS News has determined through forensic analysis that Sharyl Attkisson’s computer…

— Sharyl Attkisson (@SharylAttkisson) June 14, 2013

That may have something to do with the breach – at least according to Attkisson. Weeks ago, she hinted that she had suspicions about being watched – in a way similar to that of Fox News Channel’s James Rosen. Last month, it was revealed that the Justice Department had been monitoring Rosen’s communications. They were able to do so with the use of aggressive warrant-gaining tactics like listing Rosen as a co-conspirator for his role in publishing sensitive information.

“Well, I don’t know details of his…I only know what I’ve read but I think there could be some relationship between these types of things and what’s happened to me.

Well, I have been, as I said, pursuing an issue for a long time now – much longer than you’ve been hearing about this in the news – with some compromising of my computer systems in my house – my personal computer systems as well as my work computer systems. So, we’re digging into that and just not ready to say much more right now, but I am concerned,” she said in a recent radio interview.

CBS News did not level any official accusations in their statement.