ReimannCloud 07-28 Leaked in 2023. Your Data Is Still Out There.

April 2023: a Telegram user uploaded a stealer log file called ReimannCloud 07-28. Inside: 2,416 sets of stolen credentials -- email addresses, plaintext passwords, and URLs documenting every service each victim was signed into. That was over two years ago. The data didn't expire. It didn't disappear. Stealer log files persist in underground markets, Telegram channels, and private archives indefinetly. Right now, in 2026, someone may still be using credentials from this 2023 breach to access accounts.

Why This Is Dangerous

People often assume old breaches are irrelevant -- that criminals have moved on to fresher data. This is a dangerous misconception. The ReimannCloud 07-28 stealer log exposed plaintext passwords, and unless every affected user changed every exposed password on every affected platform, that data remains valid. Credential-stuffing attacks don't require fresh data -- they work as long as the credentials haven't been rotated. With 2,416 records in this log, and with most people still using passwords they set years ago, the ReimannCloud 07-28 breach is still an active threat in 2026. Criminals are patiant, and stolen data ages slowly.

What Was Exposed

• Email Addresses -- account identifiers that rarely change and remain valid for years
• Plaintext Passwords -- immediately usable, requiring no decryption or cracking
• URLs -- a record of which services and platforms each victim was actively using

Why This Matters

Time doesn't neutralize stolen credentials -- password changes do. Most people don't systematically update passwords after a breach they don't know about. The ReimannCloud 07-28 stealer log was distributed in 2023, but unless you were aware of it and took action, your credentials from that log may still work on one or more platforms today. Threat actors who specialize in credential stuffing maintain archives of historical breach data specifically because old credentials continue to work. If you haven't changed passwords recently, this 2023 breach is still a live risk to your accounts.

How Stealer Log Breaches Work

Stealer logs are created by infostealer malware installed on victims' computers without their knowledge. Once active, the malware harvests credentials stored in browsers -- saved passwords, session cookies, and autofill data -- along with the URLs where those credentials are used. The harvested data is packaged into a log file and transmitted to the attacker. These log files then enter circulation: they're sold on dark web markets, shared in private Telegram channels, or included in large combolist compilations. The ReimannCloud 07-28 log followed this exact path, surfacing on Telegram in April 2023 and continuing to circulate in various forms. Once a stealer log is out, it does not go away.

Check If You Are Affected

HEROIC's free breach scanner checks your email address against over 400 billion exposed records, including stealer logs like ReimannCloud 07-28. Whether this breach happened yesterday or two years ago, if your email appears in the database, you need to know. Search free now to find out if your credentials are still circulating -- and take action before someone else does.