Credential theft surged by 160% in 2025, contributing to one in five data breaches as attackers employed AI-driven attacks to bypass traditional defenses.
The challenge for security teams has evolved from simply verifying identities to verifying them securely without creating friction for legitimate users. Weak onboarding processes, overreliance on static credentials, and inconsistent authentication policies all create opportunities for attackers to exploit.
Ensuring that identity verification is as secure as possible has become a core part of modern cyber resilience. Below are five best practices organizations can use to strengthen identity verification and build more resilient access controls across their networks.
1. Use strong, fatigue-resistant multi-factor authentication
Multi-factor authentication (MFA) remains one of the most effective ways to strengthen identity verification and reduce the risk of account compromise. Rather than relying solely on a password, MFA requires users to verify their identity using two or more factors from different categories:
Something you know , such as a password or PIN.
, such as a password or PIN. Something you have , such as a smartphone, authenticator app, or hardware security key.
, such as a smartphone, authenticator app, or hardware security key. Something you are, such as a fingerprint or facial scan.
According to NIST guidance, MFA is strongest when it combines factors from separate categories. A password paired with a hardware token or authenticator app provides significantly stronger protection than relying on multiple knowledge-based factors like passwords and security questions. However, MFA isn’t immune to exploitation, with weaker implementations susceptible to attacks like prompt bombing and SIM swapping.
To improve resilience against these techniques, organizations should:
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