Tech Giants Block eMudhra Digital Certificates Over Critical Security Flaws

21 Oct 2026, 10:25 pm · 14h ago · 1 min read · Inc42

Shares of Bengaluru-based certifying authority eMudhra plunged 20% to hit their lower circuit of ₹431.55 on the BSE after security researchers discovered critical vulnerabilities in eight intermediate certificates. A researcher identified weak private keys, prompting major tech giants including Google, Apple, Microsoft, and Mozilla to revoke trust in the affected digital certificates. Licensed by India’s Controller of Certifying Authorities, eMudhra verifies digital identities for websites globally. The security flaw sparked urgent concerns regarding the acceptance of fraudulent certificates across web browsers and enterprise systems, raising regulatory scrutiny over India’s digital security oversight and global trust infrastructure.