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 INCDβs 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 |
Source & Attribution
| Source Platform | INCD |
| Channel | Israel National Cyber Directorate |
| Published | March 31, 2026 at 15:00 UTC |
| Original Link | https://www.gov.il/he/pages/alert_1986 |
This content was AI-rewritten and enriched by Shimi's Cyber World based on the original source. All intellectual property rights remain with the original author.
Believe this infringes your rights? Submit a takedown request.
Related coverage
Targeted Phishing Campaign Active in Israel Exploits Compromised Email Accounts
Shimi's Cyber World has learned of a targeted phishing campaign currently active in Israel, as reported by the Israel National Cyber Directorate (INCD). The campaign...
Unidentified RMM Tool Exploited in Active Attacks Against Israeli Organizations
Shimi's Cyber World has learned of an active cybersecurity campaign targeting Israeli organizations, leveraging an previously unidentified Remote Monitoring and Management (RMM) tool. The Israel...
Supply Chain Attack Targets Checkmarx Software Packages
The Israel National Cyber Directorate (INCD) has issued an alert regarding a supply chain attack that compromised several software packages maintained by Checkmarx. Malicious code...