519 bristol.ac.uk Accounts Found With Plaintext Passwords Leaked

HEROIC analysts found a combolist uploaded by a Telegram user on 10 June 2026, tied to bristol.ac.uk and containing 519 records. Each entry pairs an email address with a plaintext password and the URL of the login page it belongs to, a small but complete set of working credentials tied to a single institution.

Why This Is Dangerous

What makes this list immediately usable is the plaintext format. There is no hashing or encryption to break through, so anyone who downloads the file can read each password directly and pair it with the matching login URL right away. Even at 519 records, that is 519 real accounts an attacker could try to access with zero technical effort.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated login URLs

Why This Matters

A smaller list does not mean smaller risk to the people in it. Attackers can just as easily automate credential stuffing against 519 accounts as against a much larger set, testing each email and password pair against email providers, banking sites, and other platforms. Anyone connected to bristol.ac.uk who reused one of these passwords elsewhere faces a real risk of account takeover, financial fraud, or identity theft.

How Combolists Work

A combolist is a text file of email and password pairs, usually gathered from earlier breaches, phishing campaigns, or stealer malware and compiled into one list. Criminals build combolists specifically to run credential stuffing attacks, automatically testing login attempts against websites to see which combinations still work. Even smaller lists like this bristol.ac.uk set are commonly uploaded and traded through Telegram channels before spreading further across dark web marketplaces.

Check If You Are Affected

Even a small leak can expose you if you have reused a password elsewhere. HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, so you can quickly find out whether your credentials appear in this combolist or any other and secure your accounts before someone else does.