Password Spray Attacks Target Microsoft 365 in Israel
The Israel National Cyber Directorate (INCD) has reported a significant increase in password spray attacks targeting Israeli organizations utilizing Microsoft 365 cloud services. This advisory aims to familiarize organizations with this attack method and outline effective mitigation strategies.
Password spraying is a brute-force technique where attackers attempt a small number of common passwords against a large number of user accounts. This method is often employed to bypass account lockout policies, as each account is only attempted with a few passwords before moving on. The INCDโs alert highlights the growing threat of these attacks, which can lead to unauthorized access and compromise of sensitive data within Microsoft 365 environments.
Attached Files:
What This Means For You
- Implement multi-factor authentication (MFA) for all user accounts to significantly reduce the risk of successful account compromise via password spray attacks.
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| INCD Advisory | Auth Bypass | Password Spray Attacks targeting Microsoft 365 |
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