The Browser: The New Battleground for Cybersecurity

by John Allegro | October 23, 2025

The browser has emerged as the primary access point for mission-critical business applications across distributed digital environments. As reliance on SaaS platforms and cloud-based solutions intensifies, attackers are increasingly targeting the browser instead of traditional endpoints. A recent analysis by The Hacker News identifies six rapidly evolving browser-based attack techniques that pose significant risks to enterprise security. [Read the full article]

1. Phishing for Credentials and Sessions

Modern phishing campaigns have evolved beyond email. Attackers now use instant messaging apps, social media, SMS, and even SaaS platforms to deliver malicious links. These campaigns often bypass MFA using advanced phishing kits that mimic legitimate login pages and steal session tokens directly from the browser.

2. Malicious Copy & Paste (ClickFix, FileFix)

ClickFix-style attacks trick users into copying and executing malicious code via browser-based challenges. These attacks often masquerade as CAPTCHA verifications or error messages, leading users to unknowingly run commands in PowerShell or Terminal, resulting in infostealer malware infections.

3. Malicious OAuth Integrations (Consent Phishing)

Consent phishing involves tricking users into authorizing malicious third-party apps with elevated permissions. This method bypasses traditional login flows and MFA protections, allowing attackers to infiltrate platforms like Salesforce and access sensitive data.

4. Malicious Browser Extensions

Attackers are increasingly exploiting browser extensions to capture credentials and session cookies. Whether by creating new malicious extensions or hijacking existing ones, these tools can silently observe user activity and compromise business applications.

5. Malicious File Delivery

Files like HTML Applications (HTAs) and weaponized SVGs are being used to deliver phishing pages or redirect users to malicious content. These files often evade traditional detection methods and execute client-side attacks directly within the browser.

6. Stolen Credentials and MFA Gaps

Even basic attacks using stolen credentials remain effective, especially when MFA is not enforced across all applications. “Ghost logins” and poor SSO configurations leave organizations vulnerable to credential stuffing and account takeovers.

How BBH Solutions Can Help Strengthen Your Security Posture

At BBH Solutions, we understand that the browser is no longer just a productivity tool—it’s a critical security frontier. Our cybersecurity services are designed to help organizations:

  • Implement robust identity and access management to eliminate ghost logins and enforce MFA across all platforms.
  • Monitor and manage browser extensions to prevent unauthorized installations and detect malicious behavior.
  • Deploy advanced phishing protection that goes beyond email, covering all communication channels and SaaS platforms.
  • Secure OAuth integrations by auditing app permissions and enforcing strict authorization policies.
  • Enhance visibility into browser activity to detect anomalies, prevent session hijacking, and respond to threats in real time.

BBH Solutions partners with leading security platforms to deliver tailored solutions that protect your workforce where they work—inside the browser. Let us help you close the gaps and build a resilient, modern security architecture.