Just a day before tech’s big Russia-focused Congressional hearings begin, Google is out with a new report on the Russian government’s efforts to interfere in the U.S. presidential election across its platforms.

“While we have found only limited activity on our services, we will continue to work to prevent all of it, because there is no amount of interference that is acceptable,” Google wrote in its latest blog post on the issue, titled “Security and disinformation in the U.S. 2016 election.”

Google’s report appears to be limited to accounts with observable ties to the Internet Research Agency, a Russian state-affiliated organization that produces political disinformation and sock puppet accounts.

That narrowed scope is possibly an effort to appease Congress with some hard numbers, so it’s worth keeping in mind that we don’t yet know the scope of these disinformation campaigns beyond those pre-defined parameters.

Google reports that in an examination of its ad products, it discovered only two accounts with ties to the Internet Research Agency.

The two accounts had invested $4,700 into Google’s ad network (search and display ads) during the timeframe of the 2016 U.S. presidential election.

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