Microsoft: Hackers abuse OAuth error flows to spread malware

Hackers are abusing the legitimate OAuth redirection mechanism to bypass phishing protections in email and browsers to take ...
Microsoft

OAuth redirection abuse enables phishing and malware delivery

OAuth redirection is being repurposed as a phishing delivery path. Trusted authentication flows are weaponized to move users ...
Computer Weekly

Threat actors abused lack of MFA, OAuth in spam campaign

The Microsoft 365 Defender Research Team has warned users to be on their guard against a growing number of cyber attacks that abuse OAuth applications as part of the attack chain, after investigating ...
CSOonline

Cybercrooks faked Microsoft OAuth apps for MFA phishing

Proofpoint observed campaigns impersonating trusted brands like SharePoint and DocuSign with malicious OAuth applications to get into Microsoft 365 accounts. Threat actors have cooked up a clever way ...
ZDNet

Why MFA matters: These attackers cracked admin accounts then used Exchange to send spam

Microsoft has exposed a crafty case of OAuth app abuse that allowed the attackers to reconfigure the victim's Exchange server to send spam. The point of the elaborate attack was to make mass spam – ...
Bleeping Computer

New ConsentFix attack hijacks Microsoft accounts via Azure CLI

A new variation of the ClickFix attack dubbed 'ConsentFix' abuses the Azure CLI OAuth app to hijack Microsoft accounts without the need for a password or to bypass multi-factor authentication (MFA) ...
Hosted on MSN

Experts warn Microsoft Copilot Studio agents are being hijacked to steal OAuth tokens

CoPhish uses Copilot Studio agents to phish OAuth tokens via fake login flows Attackers exploit Microsoft domains to appear legitimate and access sensitive user data Mitigations include restricting ...
Dark Reading

Required MFA Is Not Sufficient for Strong Security: Report

Multi-factor authentication (MFA) is among the most useful measures companies can use against the rise in credential attacks, but attackers are adapting, as demonstrated in a variety of bypasses that ...
TechRadar

Hackers are exploiting OAuth loophole for persistent access - and resetting your password won't save you

Researchers have observed attackers weaponizing OAuth apps Attackers gain access that persists even through password changes and MFA This isn't just a proof of concept - it's been observed in the wild ...
Dark Reading

Cyberattackers Compromise Microsoft Exchange Servers via Malicious OAuth Apps

Attackers are deploying malicious OAuth applications on compromised cloud tenants, with the goal of taking over Microsoft Exchange Servers to spread spam. That's according to the Microsoft 365 ...