I have the latest CCleaner installed. I regularly run it to clean my PC. I use the custom clean and I check every box for my web browsers including Internet Explorer.
I rarely use Internet Explorer but today I opened it and I found out I was still logged into my yahoo account. I had last used it months ago.
I have been running CCleaner every day to clean the internet cache including Internet Explorer but it looks like it was in vain because it wasn't cleaning a damn thing.
I have also been running disk cleanup on Windows 10 and I would imagine that would clean up the cache too.
This is a huge security flaw. This needs to be fixed ASAP. I can't believe no one has done anything about this.