Avast integrates more than 750 employees at its headquarters in the Czech Republic and has offices in the United States, Germany, China, South Korea and Taiwan.

In September 2016 it completed the purchase of AVG Technologies, a historically rival company, for US$1.3 billion.

Though the company claimed all data was "de-identified", it was reported that the sold data could possibly in some instances be linked back to people's real identities, exposing every click and search they had made.

[9][10][11] In response, Avast announced that it would close the subsidiary over the data privacy backlash.

[12] In February 2024, the Federal Trade Commission fined Avast $16.5 million for collecting user data.