Piriform Software

[2][3] On 22 September 2015, Piriform launched CCleaner Cloud, a tool to maintain computers remotely.

[5][6] In September 2017, researchers discovered that CCleaner was compromised by hackers who inserted a backdoor into the software, enabling remote access to infected machines.

It allows one to quickly access system restore points, and it can wipe clean the free space on individual drives to completely remove deleted files.

The browser, built on Google's free and open-source project Chromium, includes built-in ad blocking and anti-tracking features.

It supposedly makes websites and advertisers less able to show targeted ads, recommendations and price increases.