What Attackers Gain From MetaCloudNew 3750 PCs.part2’s 15 Logins

HEROIC analysts logged a stealer log named MetaCloudNew 3750 PCs.part2 on 21 August 2026, containing 15 plaintext email and password pairs pulled from infected devices. The only way to know if your information is in it is to scan your email.

Why a Small File Can Still Be Dangerous

Fifteen credentials is a small count next to some other files HEROIC analysts have tracked, but each of these pairs came straight off a device that had credential stealing malware running on it. That makes every entry a real, recently used login rather than an old or abandoned one.

What Was Exposed

• Email addresses: 15 addresses captured from infected devices.
• Plaintext passwords: readable and usable immediately, with no cracking required.
• URLs: the exact login pages each password was typed into.

What an Attacker Can Do With These 15 Pairs

With a live email, password, and login page for each of the 15 entries, an attacker can attempt to sign in directly to every account named in the file. Any of those passwords reused elsewhere extends the exposure to other accounts as well.

How a File Like This Gets Assembled

MetaCloudNew 3750 PCs.part2 is a stealer log, meaning malware on a small batch of infected devices quietly copied saved logins as they were typed, then those captures were bundled together for upload. The compromise happened on the devices themselves, not through any one website being broken into.

Was One of These 15 Logins Yours?

Scan your email to check against this file directly. If the device you use for email or banking shows signs of infection, clean or reset it first, then change your passwords from a device you trust, starting with email and financial accounts. Check any work email you access from a personal device the same way.