Posts tagged with "Email Security"

Phishing Email Decoding Tools

atob() obfuscation

This p5.js script is designed to find and decode base64-encoded strings that are nested within one another. The script has several functions that work together to achieve this goal:

isBase64(str): This function checks if a given string str is a valid base64-encoded string. It uses a regular expression to test the string and the atob() function to try decoding the string. If the decoding is successful, the function returns true; otherwise, it returns false.

Microsoft 365 Email Security Management Guide

Block Unwanted Emails

Objective: Prevent sending or receiving emails from specific external email addresses or domains.

Action: Navigate to the Tenant Allow/Block List in the Microsoft Security Center. Configure the settings to block specific email addresses or domains. For direct access, use this link: Tenant Allow/Block List.

Review Past Week of Sign-In History

Objective: Review sign-in history to identify any unusual user activity.

Action: Access the Azure portal’s sign-in history section. Specify the user of interest and examine their sign-in locations and activities. Access the portal here: Azure Sign-In History.