Your Login May Be Exposed: The DAISYCLOUD Leak Hit 296,093 Records

Your Login May Already Be in the DAISYCLOUD Stealer Log

HEROIC analysts identified a stealer log file named "Upload_by_LOGSYNC_UP_DAISYCLOUD_CHAMPIONING_28_MAY_5931_ON_CHANNEL" uploaded to a public Telegram channel and tied to a leak date of May 28, 2025. The file contained 296,093 records, each pairing an email address with a plaintext password and the URL of the account it was used on. That is a large enough set of credentials that the odds of any regular internet user's login sitting inside it are not small.

Why This Is Dangerous

Stealer logs like this one are not stolen from a company's servers. They are pulled directly off individual computers by malware that copies saved passwords the moment a person types them in. That means every credential in this file is confirmed to work, or did at the moment it was captured, with nothing standing between an attacker and the account except whether the password has since been changed.

What Was Exposed in the DAISYCLOUD Leak

• Email addresses
• Plaintext passwords
• URLs of the accounts and services accessed

Why This Matters

With 296,093 email and password pairs in circulation, this file is large enough to fuel automated credential stuffing attacks against major email, banking, and shopping platforms. Attackers do not need to guess anything: they simply feed the list into a script that tries each pair everywhere it might work. Anyone who reuses a password across multiple sites is at risk of a full account takeover, and from there, identity theft and financial fraud follow quickly once an attacker controls a victim's email account.

How Stealer Logs Work

A stealer log is generated by information-stealing malware that infects a computer, usually through a malicious download, a cracked application, or a phishing link, and then quietly harvests everything saved in the browser: usernames, passwords, and the sites they belong to. Once the malware finishes its work, the operator compiles the results into a log file, like the one uploaded here, and distributes it through channels such as Telegram, either for free or for sale, so other criminals can put the credentials to use.

Check If You Are Affected

Given the scale of this leak, it is worth checking your own exposure directly. HEROIC's free breach scanner searches a database of more than 400 billion leaked records, including stealer logs like this one, so you can find out immediately if your email or passwords have surfaced and take action before someone else does.