If You Reuse Passwords, the tor_log mix 363pcs Leak Should Worry You

On October 13th, 2023, a Telegram user shared a file called "tor_log mix 363pcs" in a public channel where stolen credentials are routinely distributed. Security researchers monitoring these channels identified the file as a stealer log containing 9,523 records. The name itself gives some clues about its contents: "363pcs" refers to 363 individual log files bundled together into a single mixed dump. Each record contained an email address, a plaintext password, and a URL identifying the service where those credentials were captured. Because this is a mix of logs from many different devices and users, the victims could have accounts on any number of different platforms and services.

Why This Is Dangerous

The most dangerous aspect of this dump is straightforward: every password is in plaintext. No cracking, no decryption, no technical skill required. An attacker who downloads this file can immediately begin testing each email and password pair against popular websites. If you have ever reused a password, that single compromised credential can unlock multiple accounts. Attackers running automated credential stuffing tools can test thousands of combinations per minute, working through this list and others like it simultaneously. The tor_log mix 363pcs data has been availible on Telegram since late 2023, giving bad actors more than enough time to act on it.

What Was Exposed in the tor_log mix 363pcs Dump

• Email addresses
• Plaintext passwords (fully readable, no encryption)
• URLs of websites and services where the credentials were captured

Why This Matters

Password reuse is the reason leaks like this one cause so much damage. When a stealer log captures your login credentials for one site and that password matches your email, your bank account, or your work systems, every one of those accounts is now at risk. Attackers know this and count on it. Beyond account takeover, exposed email and password pairs are used to commit financial fraud, drain payment accounts, file fake tax returns, and take out loans in victims' names. The victims rarely find out untill the damage is already done. Even if you do not recognize the specific service in this dump, if your email and a password you have used before appear in it, you are at risk.

How Stealer Log Breaches Work

Infostealer malware is a type of program designed to silently steal credentials from the device it infects. It typically enters through a phishing email, a fake software download, or a malicious ad. Once installed, it searches the device for saved passwords stored in web browsers, cached login tokens, and session cookies from active accounts. All of that data gets compiled into a log file and transmitted back to the attacker. The attacker may then combine many individual logs into a single mixed file, exactly like the tor_log mix 363pcs dump, and share or sell it on Telegram or dark web forums. The infected user generaly has no warning that this happened until they see suspicious activity on their accounts.

Check If You Are Affected

HEROIC's free dark web scanner searches over 400 billion records, including stealer log dumps like tor_log mix 363pcs. Enter your email address to find out if your credentials have been exposed. If your email appears in this or any other breach, change your passwords immediately and turn on two-factor authentication to block anyone trying to use your stolen credentials.