Tech question re "suspicious connections"


Darned cockwombles.
Hi, don't know if anyone can answer this but I can't find a decent answer on the usual tech forums:

I just started using Bitdefender, and have got 2 or 3 pop ups (not all together, over a period of a week or so) about a "suspicious connection blocked" with the following detail:

"chrome.exe attempted to establish a connection relying on an unmatching security certificate"

Is this a regular thing with Bitdefender, or is there something to be cautious about? The popups have happened when I've been on music webpages I've been on 100 times before, where there doesn't seem any particular risk factor.