This site is infected

Oh, I am using chess.com on Ubuntu 14.04.5 LTS using Chromium version 53.0.2785.143 and never had any pop up from chess.com, from time to time some cpu heavy flash banners, but removing flash solved that on. Strangely, occasional use of chess.com on machine with Windows 10 also lacks any dramatic episodes. I am not completely convinced that suborn pointing finger is very fair of you.  

It may have come from chess.com ads, but I'm pretty sure it's on your computer at this point.

MacOS and Safari rule, Windows and Chrome drool.

The only infection I see is the new version of chess.com that keeps popping up and you have to click to go back the the old version, I wish I could stop that from happening. 

Yes. I agree that this is your problem but not this site because if this website is infected, all users will encounter the same issue. Why not check your computer to see whether if it is infected or check your web browser. As there are many redirect virus, browser hijacker and adware which will infect your computer and cause this issue.

Check this also-

Symptoms of a Malware Infections in Your Windows PC

1 Slowdown
2 Pop-Ups
3 Crashes
4 Suspicious Hard Drive Activity
5 Running Out Of Hard Drive Space
6 Usually High Network Activity
7 Browser Unusual Activities

If the problem is a malvertising attack as staff suspects, then the problem is NOT only on the OP's computer. Of course, not everyone would be affected, as some are using Linux, some have adblockers, some have removed Flash Player, and some have AV software that might intercept the attack.

Clearly there is an issue with the ad content delivery network.

Clearly this site's technical department is (still?) working to fix it.

Clearly the OP is trying to help.

Please stop with the Linux, Ubuntu, superior Browser, etc., fake news. It adds nothing to the conversation and confuses those who, like these proponents, are less technically savvy.

Sorry I have a number of machines I have Trend AV - Malware Bytes and have added addblocker the add blocker works I have tried reporting it to chess but i just get abuse and from them for not explaining it even though I have sent a number of emails with all the details.  I foolishly went onto to chess with a new machine that didn't have the addblocker in action at which point it came under attack from dozens of adds from Chess a number of them malicious..  The latest the fake google update add which is a basket case to get rid of, for those that want to tell me my machine has the problem save your breath - I only tried to help those that may get attacked.  The problem i believe comes from some adds on the site that are kicking out the malicious code.  Addblockers do stop that.

I became suspicious recently when I was in "open discussion".  The page was trying to load and it said;  "waiting for su add this.com"   I googled "add this.com". It has to do with pop up adds which the site gets from Google,  but there IS malware connected to it. 

Please pay no attention to anything said by non-subscribers in this thread. I believe that leaves you with Posts 12, 13, 17, 33, 37, and 54. Thank you.

...don't forget 57.

...and 44.

Duly noted...

I hope Chess.com fixes it.

Hope springs eternal in the human breast...

Thanks.  It was a very serious, constructive, intelligent comment -- i don't want anyone to be deprived of it.

Its quite funny i now get this message appearing at the foot of the screen when i log in "We notice you are using an ad blocker. Please consider supporting Chess.com by upgrading your account. Thanks!" 

Now I sent a number of emails to the support team to explain the issues and they basically told me to explain better or get lost.    I sent lots of screen shots - lots of links I even filled out an online form and joined another site in order to post the images and explain the issue more.  I received a number of canned responses that weren't even relevant to the problems I posted and finally an email from support that told me my verbiage was a load of old twaddle.  Well I guess I can run on, however after posting - emailing and submitting the details I certainly dont deny i became frustrated.  Regardless after taking advice from the friendlies on here a combination of add blocker - anti malware - upgrades in anti virus systems - and the installation of Microsoft malicious software installed I am now free of adds and pops up.  So thanks to those that informed me of those (ive never had to go to such lengths before) Im totally worm free.  And to all those that tried to tell me my machine was infected im pleased to say you were wrong.  But by god pay to use the site I did once and could easily do again - but after such experience from this sites's support ill be moving to another chess site once my rounds of competitions are complete.  And yes ill take the malware defences with me.   Happy Days.

Please hurry along and God's speed. If you can't support where you play it's best not to muddy the experience for those who do.

@ Gedgey:

So, your computer was experiencing all sorts of symptoms of being infected with viruses and malware, right?  

And then you installed/uprgraded ad-blocker, anti-malware, and anti-virus software, which fixed your problem, right?  

And now you're stating "and to all those that tried to tell me my machine was infected I'm pleased to say you were wrong," right? 

How does that make sense?  If your machine wasn't infected, how would installing all of that software fix the problem?

I once had an infected wound.  Then i treated it with antibiotics and it got better.  So, to all of you who think that i ever had an infected wound, you're wrong -- i never even had a wound.