David, thanks for your reply.
I'm not sure which computer's data and time you're referring to or how to check that. We use pidgin in-house within our company. I'm not sure what you mean by the "service provider." I’ve used Pidgin for years without this problem. Here are my account settings: [cid:image001.jpg@01D2CF14.03765D30] -----Original Message----- From: David Woolley [mailto:for...@david-woolley.me.uk] Sent: Wednesday, May 17, 2017 1:21 PM To: Evalee Gress; support@pidgin.im Subject: Re: Certificate could not be validated On 17/05/17 17:19, Evalee Gress wrote: > What do I do to fix this SSL certificate error? Check the computer's date and time, as it says. If they are correct, contact the service provider by suitably secure means and ask them if they are really using an expired certificate. If they say they are, point out that it is very bad practice, then make a risk assessment as how likely it is that a hacker may have cracked the encryption by now. If they say that their certificate is valid, assume you are talking to an impostor, and do not use the service to send anything that you wouldn't want your local organised crime boss, to know, and do not receive any files unless you have a deep understanding of how files can be used to plant malware and you are certain that that is not possible in your case. Similarly, if they say they know it is expired but your risk assessment determines it is too likely to have been compromised. Or preferably wait until they have fixed it, at their end, before continuing to use the service. Do not ask anyone you do not know and trust to make the risk assessment for you.
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