Max-severity Exchange server flaw under active exploitation by Kremlin hackers
Russian state hackers are using a maximum-severity vulnerability in Microsoft Outlookâs Exchange Server to backdoor unpatched machines and steal credentials and other confidential information from them, security researchers said Thursday. The attacks are coming from TA488, a tracking name for a group working on behalf of the Kremlin, Proofpoint researchers said Thursday. Proofpoint and the National Security Agency jointly warned last week that the group, also tracked as Laundry Bear and Void Blizzard, had been carrying out similar attacks by exploiting a zero-day vulnerability in an email service from Zimbra. The revelation that TA488 is also exploiting the Exchange Server [...]