Thanks to our shared experience and zero tolerance for cybercrime, our robust processes and protocols ensure our commitment to providing you with a secure product that will keep your devices clean, safe, and fast. Although CCleaner is not an antivirus or malware-detection tool, we are part of Avast, a global leader in cybersecurity. We take pride in the fact that CCleaner is the world’s most popular optimization tool, and deliver regular updates to add improvements, and ensure it stays secure. Security, safety and privacy are at the core of how we build our products and the features they provide - if you download CCleaner from a trusted source like, Amazon, the Microsoft Store in Windows, or a reputable download portal, it will be safe to use. We’re passionate about what we do and proud to serve millions of users around the world, and as we're owned by Avast - one the world's largest digital security companies - our industry-leading software practices ensure that our apps are designed and developed to run safely on your devices.