Passkey Weaknesses Every Business Leader Should Take Seriously

Passkey Weaknesses Every Business Leader Should Take SeriouslyThe era of passwords as the primary line of defense is fading. For years, cybersecurity experts have warned that traditional passwords are vulnerable to phishing, brute force attacks, and credential stuffing. Passkeys were introduced as a more secure alternative, promising to close these security gaps. But recent findings reveal that passkeys have their own weaknesses, and ignoring them could leave your business exposed.

Understanding Passkey Weaknesses

Passkeys use a cryptographic key pair, one public and one private, to authenticate users without ever transmitting sensitive data. Instead of typing in a password, users verify their identity with biometric authentication or a device PIN, creating a secure handshake between their device and the online service.

This system eliminates many common attack vectors, but it is not bulletproof. At the recent DEF CON 33 security conference, researchers from Square X exposed several passkey weaknesses that cybercriminals can exploit. These flaws allow attackers to bypass protections by targeting browser workflows, which can give them an opening into otherwise secure systems.

When a hacker compromises a browser, they can manipulate how it communicates with the authentication service. This could allow them to intercept, alter, or hijack the authentication process. Imagine having a high-tech lock on your office door, only to find out the doorframe can be pried open. That is the reality many businesses now face.

Why Passkey Weaknesses Matter for Your Business

Cybercriminals are constantly looking for the easiest way in. Even the most advanced security tool can be undermined if the surrounding infrastructure is weak. Passkey weaknesses do not make passkeys useless, but they do mean businesses can no longer assume passkeys alone are enough to keep them safe.

Here’s what makes these vulnerabilities especially concerning:

  • Browser exploitation can allow attackers to intercept authentication flows.
  • Device compromise undermines the trustworthiness of the private key.
  • User error can expose businesses to phishing or social engineering attacks.
  • Incomplete security strategies leave gaps that attackers are quick to find.

How to Strengthen Your Security Against Passkey Weaknesses

Passkeys should be treated as part of a layered security approach, not the only line of defense. By building additional protections around your authentication process, you can significantly reduce your risk.

Here are practical steps every organization can take:

  • Use multi-factor authentication (MFA) wherever possible. Even if a hacker manages to exploit a passkey vulnerability, MFA adds another obstacle.
  • Keep browsers and devices updated to close newly discovered security gaps quickly.
  • Educate your team on recognizing suspicious prompts and phishing attempts.
  • Rely on trusted security tools that can adapt to new threats quickly.
  • Work with a trusted IT partner to monitor, detect, and respond to attacks before they cause damage.

Including Passkeys in a Complete Security Strategy

Passkeys still represent a major advancement over traditional passwords, but recent research proves they are not invincible. The solution is not to abandon them, but to use them wisely. When combined with a proactive cybersecurity strategy, passkeys can help businesses strengthen their defenses without creating a false sense of security.

At CTTS, we help organizations across Austin build layered cybersecurity strategies designed to protect against modern threats. We understand how to integrate passkeys effectively while securing the surrounding infrastructure. That’s what keeps businesses running smoothly and securely.

Frequently Asked Questions About Passkey Weaknesses

1. Should my business stop using passkeys because of these vulnerabilities?
No. Passkeys are still a more secure option than traditional passwords. The key is to use them as part of a multi-layered security strategy, not as your only line of defense.

2. What industries are most at risk from passkey weaknesses?
Every industry can be targeted, but sectors like Healthcare, Legal, Professional Services, Construction, Manufacturing, and Nonprofits are especially vulnerable because they manage sensitive data and rely on secure access controls.

3. How can I make sure my team uses passkeys safely?
Regular training, strong device management policies, and real-time security monitoring are the best ways to minimize the risk of passkey exploitation.


Contact CTTS today for IT support and managed services in Austin, TX. Let us handle your IT so you can focus on growing your business. Visit CTTSonline.com or call us at (512) 388-5559 to get started!