Email security problem
Posted on 2016-10-09
I am curious about a possible security hole in my email accounts. I recently received an email on my work email that APPEARED to come from on old personal email that I used to have. I opened it and saw that it was a phishing attempt, providing a link to get to some "cool stuff". (And my old email actually was not the source, the source came from someone else, but the heading and the name was the same unique name as my old email account.) I did not click on the link and then deleted the email. My work email runs on Microsoft Exchange if that info is of any use. I have several questions about this and am hoping there are some security experts that can answer them.
1. By not clicking on the suspicious link, I believe that I did not put myself, nor my computer nor my company in danger of some kind of security hack, am I right?
2. Or is it possible that I may have an issue just by opening the email, even though I did not click on the link?
3. How is it that an old personal email, that I hadn't used in a while, appear to be the source? I did not ever link the two emails together, nor did I even use my name on the old personal email when I opened it. That old email account is still open, I never closed it, but I don't remember the last time I ever used it.
I am anxious to find out because I would like to get into the email security business and this event triggered my interest even more. In addition to these questions being answered if someone can add some links or docs about securing email I would appreciate it.