Small Leak, Real Risk: bdo.co.uk Combolist Exposes 1,808 Logins

HEROIC analysts found a file titled "bdo.co.uk - 1.809 emails" uploaded to Telegram in June 2026. The verified record count in the file is 1,808, one less than the filename's rounded figure, and includes email addresses paired with plaintext passwords and login URLs tied to bdo.co.uk. Why This Is Dangerous: This is a small file compared to some breaches, but the risk to each of the 1,808 people in it is just as real. The passwords are plaintext, meaning anyone who downloads the file can try the credentials immediately with no extra effort. What Was Exposed: The leak includes email addresses, plaintext passwords, and the URLs of the accounts they belonged to, all connected to bdo.co.uk. Why This Matters: Accounts tied to professional services firms like this one can be valuable targets, since work email addresses are often reused for banking, cloud storage, or other business tools. If your credentials are in this file and reused elsewhere, attackers can use credential stuffing to gain access to those other accounts. How a Combolist Leak Like This Works: A combolist is a curated file of login credentials tied to one site or service, usually pulled together from a smaller breach or phishing campaign and then shared on Telegram. Smaller combolists like this one are common and are often traded quickly between low-level threat actors before the credentials are used or resold. Check If You Are Affected: Even a small leak like this one is worth checking. HEROIC's free breach scanner searches over 400 billion leaked records, including combolists like this, and tells you immediately whether your email and password need attention.