Microsoft Teams users are under attack. Here's how to protect yourself against Midnight Blizzard.

Hacker

What you need to know

• Microsoft has identified a new attack affecting Teams users.
• A Russian hacker group known as Midnight Blizzard is behind the exploit.
• The attack has impacted less than 40 unique organizations.
• The hackers are leveraging previously compromised Microsoft 365 tenants belonging to small business owners to create new domains that purport to be technical support entities.
• Microsoft has mitigated the attack and is currently investigating its impact.