Impermium Acquired By Google

Redwood City-based Impermium, a developer of cybersecurity software to filter out spam, fraud, and abuse on the web, has been acquired by Google. Financial details of the acquisition were not announced. Impermium was venture backed by Accel Partners, AOL Ventures, Charles River Ventures, Data Collective, Freestyle Capital, Greylock Partners, Highland Capital Partners, Morado Ventures, and the Social+Capital Partnership.