Chrome Extensions: The Silent Cyber Threat Many Organizations Overlook

Most organizations invest heavily in firewalls, EDR, and SIEM.
But one risk is often ignored:

Browser extensions.

Security researchers recently uncovered malicious Chrome extensions disguised as productivity or access tools.
Behind the scenes, they were designed to steal credentials and active sessions from enterprise HR platforms.

 Primary targets included:

• Workday
• SAP SuccessFactors
• NetSuite

These platforms hold some of the most sensitive data in an organization.

How the attack works

• These malicious extensions can:
• Display fake login pages
• Steal usernames, passwords, and session cookies
• Take over employee or admin accounts
• Block admin or incident response pages
• Bypass MFA in some cases via session hijacking

Just one compromised HR account can lead to data breaches, privilege escalation, or even ransomware attacks.

Why this is especially dangerous

• Extensions run directly inside the browser
• The browser is the primary workspace for employees
• HR systems are a high-value target for attackers

And the biggest risk? Users tend to trust browser extensions far more than they should.

What organizations should do now

• Audit browser extensions on corporate devices
• Restrict extension installation and permissions
• Apply Zero Trust and Least Privilege principles
• Monitor HR system logins and session anomalies
• Raise awareness: the browser is a new enterprise attack surface

Key takeaway
Cyberattacks don’t always start with sophisticated malware.
Sometimes, they begin with a small browser extension that looks harmless.

#bigfishtechnology #bigfishtec #CyberSecurity #IdentitySecurity #ZeroTrust #HRTech #DataBreach #BrowserSecurity #CyberAwareness
#EnterpriseSecurity #DigitalRisk