The history of Avast traces the history of personal technology innovations, the rise of the internet, and the integration of technology into nearly every aspect of people’s increasingly digital lives.

Over its 30-year history, Avast has maintained its roots in the Czech Republic, fueled by a sense of fierce independence, a passion for protecting people’s right to security and privacy, and a strong engineering talent pool.


NortonLifeLock completes merger with Avast

"We believe that everyone deserves the freedom to live their digital lives to the fullest,” said Vincent Pilette, CEO of NortonLifeLock and the Combined Company. “Half a billion users trust us to protect and empower their digital lives, and now that NortonLifeLock and Avast have come together, we plan to redefine and reimagine Cyber Safety for consumers and small businesses around the world.”


Avast steps up to protect digital freedom for all

Avast unveils a brand new look that reflects its wider purpose. On the same day, Avast One is released — an all-in-one flagship product combining robust threat detection with advanced privacy and performance features.


FTSE 100

In 2020, Avast entered the FTSE 100 index, which tracks the stocks of the largest firms traded on the London Stock Exchange.


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Leading a new phase of growth

Ondrej Vlcek is appointed CEO.

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Going public on the London Stock Exchange

In May 2018, Avast is listed on the London Stock Exchange.

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Serving 435 million active users

All versions of Avast antivirus protect against WannaCry, BadRabbit and NotPetya ransomware as well as Emotet crypto-mining attacks, without requiring a single product update. Avast reaches $811M in adjusted billings. Avast acquires Piriform, bringing our total active users to over 435 million.

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Joining forces, better together

Avast acquires fellow Czech-based cybersecurity giant AVG, doubling our total number of users and bringing in new talent and technologies. The acquisition gives Avast the largest and most advanced threat detection network, based on our massive user base, and further diversifies our product portfolio, geographic base, and revenue streams.

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Celebrating our brand new headquarters in Prague

Avast opens its new Prague headquarters, bringing Silicon Valley style to the Czech Republic.

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Rising up with the mobile boom

CVC Capital Partners becomes a strategic investor. Our mobile products reach the 100 million download milestone faster than any other mobile security tools in Google Play history.

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Gaining momentum with mobile carriers

Avast's mobile family apps hits the 1,000,000 subscriber milestone through mobile carrier partnerships.

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Bringing the best to mobile

Avast Free Mobile Security becomes the best-rated security app on Google Play. Avast Free Antivirus is the most downloaded software on

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Getting down to business

Avast expands into business security, focusing on the SMB market.

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Becoming Avast

Summit Partners comes on board as an investor. Alwil is rebranded as Avast to match the name of our iconic software.

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Welcoming new leadership

Vincent Steckler is appointed CEO of Avast.

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20 million users strong

The number of people using Avast continues to grow exponentially, doubling twice in one year, reaching 20 million.

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Surpassing one million users

Within 30 months of going free, Avast is used by over 1 million people around the world.

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Free security for all

Avast makes the defining decision to change the traditional antivirus business model and offers a fully featured, free antivirus to all.

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Avast goes global

After refusing an offer to be acquired, Alwil instead licenses its Avast antivirus to McAfee, and watches its global distribution grow rapidly.

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Joining Avast — Ondrej Vlcek

Ondrej Vlcek, now the CEO, joins Alwil as a software developer.

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Founding a company — ALWIL Software is launched

Following the fall of Communism after the Velvet Revolution of 1989, Pavel and Eduard break off from the rest of the cooperative, establishing ALWIL as a company.

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Destroying a virus — the start of something big

Pavel Baudis defeats the Vienna virus, and he and Eduard Kucera establish the ALWIL cooperative to distribute and sell their newly created software.