[Solved]HSTS blocking access to many web sites.

[A Former User]

A Former User last edited by leocg

I use Opera 63.0 with HTTPS installed. My computer is a Mac Mini using OSX 10.11.6 (El Capitan).

Something called HSTS suddenly started blocking access to many web sites today — Thursday, October 3 — with no prior warning or indication or anything. I am now unable to access some of my most important and most frequently accessed sites.
Can anyone help me?

I get this instead:

Or I get this:

[A Former User]

A Former User last edited by

Nobody have any ideas or suggestions?

[leocg]

leocg Moderator Volunteer @Guest last edited by

@bobamamda-0 Well, you just waited for a day.

Do you use any antivirus or some other program that intercept your internet traffic?

If I saw the message in the first screen shot, i would have started looking for malware on my computer.

[A Former User]

A Former User @leocg last edited by

@leocg

Thanks for responding.
I use Malwarebytes and Avast.
I received no warning from Avast while I was trying to access any web sites.
When I read you entry here, I ran Malwarebytes and came up clean.
There had been no change in any of my software settings in a long time.

[leocg]

leocg Moderator Volunteer @Guest last edited by

@bobamamda-0 Do you use any kind of proxy to connect to the internet?

[A Former User]

A Former User last edited by

We have DSL with AT&T. We use a router to which a few computers are linked. We don't use a VPN, if that is what you mean by a proxy.

[leocg]

leocg Moderator Volunteer @Guest last edited by

@bobamamda-0 AT&T offers some kind of protection service for the internet? Based on the first image, it seems that AT&T is intercepting the internet traffic.

[A Former User]

A Former User last edited by

Thanks for responding. I wondered about that because of the ereservations.att.com web site that was listed above. The situation has cleared up. If it occurs again, I will go straight to ATT.