Avast Plc, together with its subsidiaries, provides cybersecurity services under the Avast brand name the United States, the United Kingdom, France, Germany, and internationally. The company operates through two segments, Consumer; and Small and Medium-sized Business (SMB). It offers desktop security and mobile device protection products; value-added solutions for performance, privacy, and other tools; and web browsing, third-party software distribution, e-commerce tool, mobile advertising, and other IT managed solutions, as well as security and protection solutions for small and medium sized business customers.

The company also sells subscription software licenses through an e-shop directly to end customers in cooperation with payment gateways provider. It primarily sells software licenses through e-commerce services providers, and retailers and resellers. The company was founded in 1988 and is headquartered in Prague, the Czech Republic.

As of September 12, 2022 Avast plc Operate as subsidiary of NortonLifeLock Inc.