Microsoft Security Report Points to Basic Authentication as Root of BEC Attacks

The need to remove basic authentication from Exchange Online is underlined by a June 14 report from the Microsoft Threat Intelligence Center pointing to how attackers compromise mailboxes using antiquated protocols like POP3 and IMAP4 to connect to accounts which don’t use MFA. After accounts are penetrated, the attackers plant inbox rules to forward copies of interesting messages and use the information received to plan and execute business email compromise attacks. Tenant administrators still have some work to do to secure Exchange Online and Azure AD…

How to Enable the First Contact Safety Tip for Exchange Online Protection

Exchange Online Protection (EOP) and Microsoft Defender for Office 365 support anti-phishing policies which generate safety tips for users. The first contact safety tip warns users when they receive email from someone they don’t usually get messages from. It’s a way to put the recipient on their guard, just in case it’s someone trying to impersonate someone else whom the recipient actually knows.

EOP Escalates the Fight Against High-Confidence Phish

A change due in December will improve how Exchange Online Protection suppresses high confidence phish messages and stop them being delivered to user mailboxes. The old-fashioned allowed sender and allowed domain lists are being taken out of the equation and ignored when EOP is sure that it’s dealing with some high-confidence phish. It’s time to check your anti-spam policies.