Several of our websites blocked for Phishing

I work for a web agency in France and we have 3 computers with avast free.
We manage 80+ websites that we created and update monthly.

This morning 7 websites that we manage are blocked by Avast for phishing (on those 3 computers). It was fine yesturday
.
I installed Avast on my computer to test it, and those website are NOT considered a menace for phishing.
I updated every avast (the 3 “old” and mine that i just installed") and the same thing happened, those websites are not blocked on my computer, but they are blocked on 3 of my co-workers computers.

List of websites considered phishing.

We are careful about security and those websites are 100% clean.

I checked every log or info I could find on Avast to help me find the problem, but I can’t find anything.
Does someone have an idea why this happens ?

It’s probably false positives, but it happened simultaneously on 7 out of our 80 websites. Something is very wrong.

I also made a false positive request, but I’d like to fix this ASAP.

Thanks,

Hi,
None of the sites you mention are blocked by avast on my 4 PCs running avast (latest program version and VPS),…, so I assume that it is on the side of your server or the DNS of your connection that there is a problem.
Try to change DNS and/or clear DNS cache on the computers of your co-workers.

It’s now working on my coworkers computers , i didin’t do anything …
It’s great if it works but i’m cluless about the reason.

Not sure if i should create a new thread or post here, so trying here.

Avast is blocking twitch.tv for me, not a single video will load without avast blocking it and screaming URL:Techscam

What to do?

Start at the main forum https://forum.avast.com/index.php?board=2.0 here you see a listing of all posts - at the top (and bottom) of those listings there is a New Topic button.