Nothing like this from coinsecure..
We do get enquiries, but always for a single or group of users, where something has really gone bad, Our lawyer verifies and drafts responses and sends us data dump requests. We have never divulged blanket information, however, under duress and court stress, we are aware that blanket requests are possible.

The source does look like a guess or word of mouth or bad rumour or something. I would disregard it unless there was a legitimate alarm about the same.