Well it says the identity of the site is verified by Startcom, but also says (and this is highlighted as the issue) it's 256-bit coded and that the page also contains parts that are not secure (and it says sources could be seen by others or could be edited by hackers etc). It's written in dutch so i translated it partyly...
My time is set correct.
256-bit encryption should not be a reason for it to be considered invalid.
Odd that you're seeing a "parts that are not secure" message on multibit.org - I don't see that. I believe that is Chrome's equivalent of the 'mixed content' warning, which means that some elements of the page were served up over HTTP rather than HTTPS, which as far as I can tell shouldn't be happening on multibit.org and isn't here. Malware may actually be a possibility, perhaps something is injecting ads or something served over HTTP into the page for you?
Try the following, maybe:
- CTRL-SHIFT-I to open the Chrome inspector window (while on multibit.org)
- Go to the Network tab
- Right click the column headers (Name, Method, Status, etc) and enable 'Scheme' as a column
- Force a page refresh with CTRL-F5 with the inspector window still open.
- Now check for anything in the list of resources fetched which has a Scheme of 'http' instead of 'https'.
If there's anything http there, that would explain Chrome's complaint, and might be indicative of something being injected (since I see nothing being linked via HTTP on multibit.org here). Perhaps malware, a proxy, a chrome extension, or even your ISP?