![]() In addition to smartly detecting the lookalikes, ATP will also use what Microsoft refers to as “mailbox intelligence” to determine whether a phish-like email is being received from a new email address that the recipient has had no prior communication with. This feature allows you to create policies to detect messages that use lookalike email addresses and domain names to trick users. Or, you limit the approach to messages that match more specific criteria, which is usually based on attacks you’ve already seen, meaning you’re constantly reacting to new variants.ĭefending from these phishing attacks should get a little easier for Office 365 customers with the rollout of anti-phishing policies. The trouble with that approach is that you either tag all such mail with the warnings, which over time decreases the effectiveness of the warning as users become desensitized to it. A common approach is to tag all inbound mail from external senders with some type of identifying mark, such as prepending the subject line with the “”, or inserting text into the start of the email message with a similar warning. If the attacker can get their email into the targeted mailbox, the recipient can easily be fooled by lookalike domain names, such as using globomantiçs.biz to impersonate .įaced with these risks, some customers have implemented their own solutions using Exchange mail flow rules. These are attacks where criminals try to impersonate a trusted sender, targeting individuals within an organization that have access to sensitive data such as employee personal information, credit card numbers, or the ability to transfer money to other bank accounts. However, it’s more difficult to detect spear-phishing and whaling attacks. ![]() The forged sender addresses, the quality of the writing in the emails, the keywords used, the domains they link to, and so on. ![]() For the standard phishing emails, like an eBay or PayPal credential theft attempt, there are plenty of signals for EOP to look at. Microsoft has included phishing detection in Exchange Online Protection for some time now. ![]()
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