Microsoft discloses security breach that impacted some Outlook accounts

On Friday, Microsoft sent out notification emails to some users informing Outlook account owners of a breach the company suffered and which might have also impacted Outlook users directly. According to Microsoft, between January 1, 2019, and March 29, 2019, a hacker, or group of hackers, compromised the account of a Microsoft support agent, one of the company’s customer support representatives that handles technical complaints. The OS maker said it disabled the compromised support agent’s credentials once it learned of the unauthorized intrusion; however, the company said there might be a possibility that the hacker accessed and viewed the content of some Outlook users’ accounts. “This unauthorized access could have allowed unauthorized parties to access and/or view information related to your email account (such as your e-mail address, folder names, the subject lines of e-mails, and the names of other e-mail addresses you communicate with), but not the content of any e-mails or attachments,” Microsoft said in the email sent to customers. However, former Microsoft engineers have contested this claim –that support agents can’t view user’s email content. “They can see how many emails you have, where the database lies, email content, last person you emailed,” one former engineer told ZDNet via encrypted chat. ZDNet contacted Microsoft for clarification regarding this claim, and we were told that the email notification was, indeed, accurate and that the hacker did not access users’ email content nor attachments, but did not go into further details. In follow-up questions with other Microsoft engineers, we were also told that the confusion about what the hacker might have accessed depends on whose account the hacker accessed, as the term “support agent” is used for both tech support staff, but also for engineers working with Microsoft’s enterprise customers. The latter have increased accessed over servers…

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