#Em client yahoo mail server says unauthorized fullAlthough, the anti-spam controls were not effective in protecting my email account from being abused for spam purposes, the controls were in full protection mode when I tried to email all my contacts to warn them of the yahoo email account incident. Obviously this control didn’t work completely because some email batches passed through the system controls and reached my contacts while others were blocked by the system and never sent out. Based on my initial assessment of this case, I noticed a few details about the incident that might be interesting to some.įirst, the emails spammed to my contacts were organized in multiple batches of just a few emails at a time to probably bypass the system’s anti-spam controls in place. System backdoors might be vulnerable allowing intruders to invite themselves into the system from the backdoors or, disgruntled employees who already have access to Yahoo customer information might be abusing their privileged access. #Em client yahoo mail server says unauthorized passwordCracking a user’s password is not the only way to gain unauthorized access to emails. Also, it’s not apparent to me how intruders gained access to the Yahoo email account and maybe Yahoo can shed some light on this mystery through an in depth investigation as multiple Yahoo accounts have been compromised in the past as I found out later (to this date, Yahoo has not responded to my request with an explanation and details about this intrusion). The privacy intrusion and the abuse of my personal information was yet another awakening moment for me which caused me to rethink my approach to managing my contacts and my trust level with regards to the email account systems and their security measures. This wasn’t a case of spoofing but an actual case of email account take over. Anyhow, my Yahoo email account information was illegally accessed by spammers to send unauthorized emails to my Yahoo contacts at 3 o’clock in the morning from my Yahoo account. These people who know me well had immediately noticed that the email with no subject line or any text in the body which just included a link to a health site could not actually be sent by me, although the emails appeared to come from my personal account. A few people I know contacted me to warn me that they received emails from my Yahoo email account with just a link to a health related website. The last time my Yahoo email account was taken over by hackers to send spam emails was o n January 28, 2010.
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