# Cookie theft: how stolen browser data gives fraudsters account access

The Guardian Biz explains how fraudsters steal cookies, the small files browsers use to keep users logged in, to bypass passwords and hijack accounts. The practice matters because stolen cookies can give attackers access to email, banking, and social media even when credentials are not compromised.

**Importance:** 2/5

## Sources

### Business
- [The Guardian Biz](https://www.theguardian.com/money/2026/oct/25/cookie-theft-how-fraudsters-get-the-digital-key-to-your-accounts) — Sun, 25 Oct 2026 07:00:56 GMT