Microsoft 365
Microsoft disrupts the RaccoonO365 Phishing-as-a-Service operation, names alleged leader
Microsoft and Cloudflare have disrupted a Phishing-as-a-Service operation selling the RaccoonO365 kit for stealing Microsoft 365 account credentials. “Using a court …
Why your Microsoft 365 setup might be more vulnerable than you think
60% of organizations rate their Microsoft 365 security as “established” or “advanced”, according to CoreView. Yet, 60% of those same organizations have experienced account …
Microsoft boosts default security of Windows 365 Cloud PCs
Windows 365 Cloud PCs now come with new default settings aimed at preventing / minimizing data exfiltration and malicious exploits, Microsoft has announced. Windows 365 Cloud …
Attackers phish OAuth codes, take over Microsoft 365 accounts
Suspected Russian threat actors are using OAuth-based phishing attacks to get targets to grant them access to their Microsoft 365 (M365) accounts. “The primary tactics …
Massive botnet hits Microsoft 365 accounts
A recently discovered botnet of over 130,000 compromised devices is launching coordinated password-spraying attacks against Microsoft 365 (M365) accounts. Security researchers …
Threat actors are using legitimate Microsoft feature to compromise M365 accounts
Suspected Russian threat actors have been taking advantage of Microsoft Device Code Authentication to trick targets into granting them access to their Microsoft 365 (M365) …
Ransomware attackers are “vishing” organizations via Microsoft Teams
The “email bombing + posing as tech support via Microsoft Teams” combination is proving fruitful for two threat actors looking to deliver ransomware to …
CISA orders federal agencies to secure their Microsoft cloud environments
The US Cybersecurity and Infrastructure Security Agency (CISA) has issued a binding operational directive (BOD 25-01) requiring federal civilian agencies to secure their …
European companies hit with effective DocuSign-themed phishing emails
A threat actor looking to take over the Microsoft Azure cloud infrastructure of European companies has successfully compromised accounts of multiple victims in different …
ScubaGear: Open-source tool to assess Microsoft 365 configurations for security gaps
ScubaGear is an open-source tool the Cybersecurity and Infrastructure Security Agency (CISA) created to automatically evaluate Microsoft 365 (M365) configurations for …
Unpatched MS Office flaw may leak NTLM hashes to attackers (CVE-2024-38200)
A new MS Office zero-day vulnerability (CVE-2024-38200) can be exploited by attackers to grab users’ NTLM hashes, Microsoft has shared late last week. The vulnerability …
Microsoft 365 anti-phishing alert “erased” with one simple trick
Attackers looking for a way into organizations using Microsoft 365 can make an alert identifying unsolicited (and thus potential phishing) emails “disappear”. …
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