Ebay sends these mails asking you to update your personal information in order to 'improve security'.<p>There is no opt-out option, and it is doubtful that updating your address will actually improve 'security' in any meaningful sense.<p>Therefore, this is a veiled attempt at gathering user data for commercial purposes, and there is no opt-out, thus violating the CAN-SPAM act?<p><a href="https://www.ecfr.gov/cgi-bin/retrieveECFR?gp=1&SID=cea8be427690a26231dda41b8ccb5f75&ty=HTML&h=L&n=16y1.0.1.3.40&r=PART#se16.1.316_13" rel="nofollow">https://www.ecfr.gov/cgi-bin/retrieveECFR?gp=1&SID=cea8be427...</a>