CCleaner Cloud Development Update

As a global software company, we rigorously monitor and test our systems, and cooperate with local, regional, and international agencies to actively track and verify malicious behavior. Through this monitoring, it came to our attention that cybercriminals may have been planning to target CCleaner.

At CCleaner, we have a zero-tolerance policy against cybercrime. Although we found no indications that any users were affected, our users’ security is of utmost importance to us so we:

  • Revoked the prior product certificate and issued a new one
  • Revoked and re-issued the signing keys, which let users verify valid software
  • Carried out some proactive development work to further strengthen the security of the CCleaner Cloud agent and installer

Having taken these precautions, we are confident to say that our users are protected and unaffected. Your CCleaner Cloud account is safe to use and you can continue to use it as normal.

We apologize for any inconvenience caused while this development work was carried out and thank you kindly for your patience. 

We are happy to extend your license/s with the time lost while we made these important updates. To request this, or if you have any questions, please email



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