For several years I've been having laser treatment for rosacea, microneedling etc by a medical professional who directs his own medical centre in a major European city.
Today, I had a notification on LinkedIn and recognised the surname straight away because it is of Turkish origin (and I'm not living in Turkey!) and this man is the double of his brother who treats me.
The only possible way he would know my name would be via the medical brother, meaning a serious breach of confidentiality. I can't think of another explanation.
I didn't view the man's page on LinkedIn. Deliberately ignored it.
Not sure if I should raise this at a future appointment.