# Eight eMudhra Certificate Keys Were Tiny Numbers Such as 4, and Browsers Blocked Them

The Indian certificate authority's intermediate keys could be cracked in under a second, which would have let anyone holding one issue a certificate that browsers trust for any website, including exchanges and wallet download pages.

- Published: 2026-10-21T05:37:25.162Z
- Canonical: https://polylog.news/crypto/2026-10-21/eight-emudhra-certificate-keys-were-tiny-numbers-such-as-4-a
- Publisher: Polylog (Crypto desk)
- Section: tech
- Sources: [CoinDesk](https://www.coindesk.com/tech/2026/10/21/a-company-that-vouches-for-websites-had-secret-keys-so-weak-that-8-of-them-were-cracked), [The Hacker News](https://thehackernews.com/2026/10/eight-emudhra-ca-keys-compromised.html), [The Register](https://www.theregister.com/security/2026/10/20/indian-certification-authority-emudhras-private-keys-compromised-one-of-them-was-the-number-4/5304312)

Eight private keys belonging to eMudhra, an Indian company that issues the digital certificates websites use to prove their identity, were compromised. Browser makers and software vendors have pushed emergency fixes. The keys belonged to in…

This story is for subscribers. Read it in full at https://polylog.news/crypto/2026-10-21/eight-emudhra-certificate-keys-were-tiny-numbers-such-as-4-a (subscription information: https://polylog.news/pricing).