How One Phishing Email Let Attackers Bypass MFA and Redirect a Company’s Vendor Payments
An HR-themed phishing lure led a finance employee to a fake Microsoft 365 login that stole an authenticated session cookie, letting attackers bypass MFA entirely. Over the following...
New “Pass-the-Passkey” Technique Shows How Windows 11 Logs Undermined Phishing-Resistant MFA
Security researchers at SpecterOps have detailed a family of attacks called Pass-the-Passkey that exploit how Windows 11 logged WebAuthn authentication data and how Microsoft Entra ID validated it,...
Gunra Ransomware Gang Turns Fortinet VPN Bugs Into a Backdoor Around MFA
A joint advisory from the FBI, CISA, NSA, and South Korean authorities warns that the Gunra ransomware operation is exploiting known Fortinet VPN flaws to sidestep multi-factor authentication...
Greatness Phishing Service Lets Attackers Slide Past MFA Into Microsoft 365 Inboxes
A phishing-as-a-service platform called Greatness is stealing live authentication tokens rather than passwords, letting attackers walk past multi-factor authentication and into Microsoft 365 mailboxes. A recent campaign hid...
81 Million Login Attempts: Massive Password Spray Campaign Bypasses MFA to Compromise Azure and Microsoft 365 Accounts
A massive automated campaign made 81 million login attempts against Microsoft 365 and Azure CLI accounts between June 12 and June 26, 2026, successfully compromising 78 accounts across...
AWS AiTM Phishing Kit Bypasses MFA to Hijack Cloud Console Sessions in Real Time
A real-time adversary-in-the-middle phishing kit has been targeting AWS engineers, stealing credentials and MFA codes simultaneously to hijack cloud sessions before they expire. Standard MFA provides zero protection...
CVE-2026-48558: Critical SimpleHelp Auth Bypass Exposes 14,000 RMM Servers to Unauthenticated Access
Horizon3.ai disclosed CVE-2026-48558, a critical authentication bypass in SimpleHelp's OIDC integration that allows unauthenticated attackers to create privileged technician accounts and bypass MFA. Nearly 14,000 internet-exposed servers are...
Tycoon 2FA Phishing Kit Bypasses MFA at Scale — 62% of Microsoft 365 Phishing Attempts Linked to Single Threat Actor
The Tycoon 2FA phishing-as-a-service kit, operated by threat actor Storm-1747, is bypassing multi-factor authentication on Microsoft 365 and Google Workspace accounts at massive scale. At its peak it...