If You Reuse Passwords, the SKYULP ULP 15 Leak of 1.6 Million Records Should Worry You

HEROIC analysts confirmed the SKYULP PRIVATE ULP 06-02-2026 15 dataset in February 2026, tracing it to a Telegram user who distributed a stealer log archive containing 1,662,756 records. The collection included email addresses, plaintext passwords, and endpoint URLs harvested from compromised Windows machines by infostealer malware. Part 15 in the SKYULP private series, this dataset continued a sustained distribution campaign in which fresh credential batches were released at regular intervals throughout early February 2026.

If You Reuse Passwords, the SKYULP ULP 15 Leak Should Worry You

The specific danger of this stealer log is that every credential in it was captured live, in plaintext, from a real device. If you use the same password on multiple sites, attackers who find your email in this dataset will test that password against your banking platform, your email provider, your workplace login, and any other account they can find associated with your address. They do not need to crack anything -- the password is right there, ready to use. The 1.6 million records in this archive provide enough scale for automated attacks to run continuously for days against every major platform on the internet.

Data Exposed in the SKYULP PRIVATE ULP 06-02-2026 15 Archive

The 1,662,756 records in this stealer log dataset contained the following sensitiv catagories of compromised information:

• Email Addresses -- victim identifiers enabling account targeting, phishing, and credential stuffing attacks
• Plaintext Passwords -- unencrypted passwords captured directly from browser saved-credential stores
• URLs -- the specific login pages and API endpoints from which each credential was stolen

How Criminals Use This Data: Stuffing, Takeover, and Fraud

Once a stealer log like SKYULP ULP 15 circulates on Telegram, it enters the criminal economy immediately. Credential stuffing bots ingest every email/password/URL trio and run them against live platforms -- email providers, banks, streaming services, and e-commerce sites are all tested automatically. Valid logins are extracted and sold or exploited directly. Account takeover follows quickly: attackers use compromised email access to intercept password reset messages for linked accounts, giving them control across the victim's entire digital footprint. Identity theft becomes possible when enough personal data accumulates, and financial fraud is the natural end state when payment credentials or banking logins are present. For victims who reuse passwords, a single compromised credential from this dataset can cascade into dozens of account breaches.

How Infostealer Malware Feeds the SKYULP Series

The SKYULP naming pattern -- combining a brand identifier with numbered release dates -- is characteristic of professional infostealer operations. Malware families like LummaC2, RedLine, and Vidar continuously infect new machines through phishing emails, malicious downloads, and compromised software. Once installed, they silently enumerate the victim's browser credential stores, extract every saved username and password, and record the exact URL associated with each entry. This raw output is bundled into a ULP-format file and transmitted to the operator's server. The operator then sorts, deduplicates, and packages the logs into private distribution archives that are sold or shared with trusted Telegram subscribers. Each numbered release -- like 06-02-2026 15 -- represents a fresh batch of infections, ensuring the credentials are recent and likely still active at the time of distribution.

Check Your Exposure Across 400 Billion Breach Records

HEROIC's free breach scanner searches more than 400 billion compromised records, including the SKYULP PRIVATE ULP series and thousands of other stealer log datasets. Enter your email address to instantly check whether your credentials appeared in part 15 or any other dataset in our database. If your data is found, update affected passwords immediately and enable two-factor authentication. Don't assume you are safe because you haven't received a breach notification -- stealer log victims rarely know they have been compromised until the damage is already done.