Defending the Keep: Modern Identity Attacks

Room 13Tue 12 May • 09:45–10:45Cloud & DevOpsIntermediate
Passwords are no longer a security control — they are a liability. In modern identity breaches, attackers almost never “hack” passwords. They harvest them through phishing or reuse them from previous leaks, rendering complex password policies and user training largely irrelevant against real-world attack techniques. Multi-factor authentication improves security, but it does not fix the underlying problem. Man-in-the-middle attacks intercept credentials and session tokens in real time, MFA fatigue attacks exploit human behavior at scale, and token theft allows attackers to impersonate users without triggering reauthentication or alerts. At that point, the attacker is no longer breaking in — they are logging in. Fortunately, the rules of the game can be changed. We’ll show how passwordless and phishing-resistant authentication using FIDO2, passkeys, and hardware-backed authenticators can eliminate entire classes of attacks by design. We’ll also examine techniques such as token binding and continuous access evaluation to reduce the impact of stolen tokens, and discuss how organizations can adopt these controls today without sacrificing usability or operational sanity.

About the speaker

Els Putzeys

Els Putzeys is an author, speaker and full-time trainer at U2U. She has over 15 years of experience in the industry. In recent years, she has a strong focus on Microsoft Azure and Microsoft 365 technologies. At U2U, she is responsible for developing and maintaining training courses on Infrastructure, Deployment, Security and Compliance.