WIST is now a secure https site. I’ve had a certificate to do this for a while, but never quite got around to fully implementing it in WordPress. But now all access to wist.info should automatically go to https://wist.info. It wasn’t a critical warning, since I do no commerce (and very little credentialing) here, but for the sake of Google SEO and overall Internet security, it’s taken care of.
And if that was all gibberish to you, no worries — it just means your browser’s scary warning about how this was an insecure site will no longer pop up.