Invalid security certificate

[DealorNoDeal]

Ok, the error says:
"This certificate has expired or is not yet valid.
Valid from 06/01/2022 to 06/04/2022"

So, this comes back to what Paddy said. What date does your computer think it is?

The clock in the bottom right hand corner shows 28/02/2022. If I open it, it shows 28 February 2022.

[DealorNoDeal]

What is the date/time on your computer? Above
What OS are you using? Windows 7
Is your computer up to date on firmware/OS? AFAIK
Are you connecting to the internet directly, or via a VPN (or similar "privacy" process)? Directly

Thanks

[WTFH]

Thanks

You're running Windows 7 and think you're up to date?
That OS came out in 2009 and went End Of Life 2 years ago.

[secwombat]

Windows 7 has been out of support for 2 years. The "root" certificate for this site is provided by LetsEncrypt, and isn't in the list of known certificate authorities on your PC.

Slightly surprised that you've ever been able to access this site or others, without certificate warnings for quite some time.

Really can't recommend continuing to use Windows 7 (particularly at the moment given the amount of cyber activity going on from all sides) - but there is a workaround detailed here: Fixing Windows installs that don't receive updates to their trusted roots - Help - Let's Encrypt Community Support (letsencrypt.org)

Remember though that as your OS is out of support, you haven't been getting any security updates, so be careful out there !

[DealorNoDeal]

You're running Windows 7 and think you're up to date?
That OS came out in 2009 and went End Of Life 2 years ago.

Aye well, it's worked fine for years. My wife has Windows 10 and I'm not keen on that.

But that's just me. The laptop is 12 years old, and I'm still using an 18-year old Nokia 6310i, and wouldn't swap it for anything else.

[eek]

You're running Windows 7 and think you're up to date?
That OS came out in 2009 and went End Of Life 2 years ago.

Chrome is on extended but paid for support - so I would love to know what version of Chrome you are on its version 98 at the moment.

Firefox should work but I suspect your version is nothing like release 84.

[secwombat]

Chrome & Firefox use the OS certificate store. They've muttered about using their own, but nothing has come about it.

Not sure I'd trust Google to be able to say who should be trusted or not - but Microsoft / Apple aren't any better (e.g. the TLA organisations have certificate authorities in there - meaning if they intervene in your connection, it will still appear to be ok(

[eek]

I suspect the issue relates to DST Root CA X3 Certificate Expiration Problems and Fix - The Tech Journal (stephenwagner.com) and you've had it over 6 months.

A fix can be found at Let's Encrypt DST Root CA X3 expiry Sept 30th 2021 | Certify The Web Docs

But the reality is that that computer should contain nothing of value if you are connecting it to the internet as it's a hacker's dream (given the 30ms it will take to hack into it)

[Paddy]

Aye well, it's worked fine for years. My wife has Windows 10 and I'm not keen on that.

But that's just me. The laptop is 12 years old, and I'm still using an 18-year old Nokia 6310i, and wouldn't swap it for anything else.

I am using CPM with WordStar 4 and a 300bd modem

[WTFH]

Aye well, it's worked fine for years. My wife has Windows 10 and I'm not keen on that.

But that's just me. The laptop is 12 years old, and I'm still using an 18-year old Nokia 6310i, and wouldn't swap it for anything else.

You're mixing and matching there.
Your Nokia is not a smartphone, but is a very good phone.

You don't say why you don't like Windows 10, but if you're living in the past, then you have to live with the constraints of the past.