so....my yahoo acct activity puts me in south boston. changed my yahoo password on a clean computer and did a clean install on my computer. yahoo activity/south boston. ISP(Comcast) provider says I have dynamic ip address(changes all the time: when I log off-every couple of weeks) am I being paranoid in thinking I'm compromised? the horror stories I've read may have stoked this feeling a bit.....but how can I know 1 way or another?