: Claims to be "High Quality," implying the data is fresh or has a high success rate [1].
$$ \textRate = \frac\textNumber of occurrences of an item\textTotal number of items \times 100% $$
When a list is localized to a country like Canada, the risk increases for: Interac e-Transfer Fraud: Gaining access to emails to intercept funds. Loyalty Program Theft: Draining PC Optimum or Air Miles points. Government Service Access: Attempting to log into CRA or My Service Canada accounts. How to Tell if You’re on the List
# Example usage file_path = "50K-HQ-CANADA-COMBOLIST-BEST-FOR-ALL.txt" features = extract_features(file_path) if features: print("Item Count:", features["item_count"]) print("Unique Items:", features["unique_items"]) print("Top 10 Items:") for item, freq in features["top_10_items"]: print(f"item: freq")
Use only the data necessary for the security audit [1]. 50K-HQ-CANADA-COMBOLIST-BEST-FOR-ALL.txt
Geographically targeted combolists pose a severe risk to the local digital economy.
Understanding the "50K-HQ-CANADA-COMBOLIST-BEST-FOR-ALL.txt" File
A combolist is a plain text file containing leaked user credentials. The standard format separates data with a colon or semicolon: username@email.com:password123 canadianuser22:mysecretpass Use code with caution.
Files explicitly targeting Canadian infrastructure or citizens are highly sought after in cybercrime communities for several reasons: : Claims to be "High Quality," implying the
Organizations must report a breach to the Office of the Privacy Commissioner of Canada (OPC) and notify affected individuals if the breach poses a "real risk of significant harm". "Significant harm" includes:
To protect against these lists, users should use Multi-Factor Authentication (MFA) and unique passwords generated by a password manager [7, 8].
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: Claims the list is versatile and effective for cracking various platforms, such as streaming services, gaming accounts, or shopping sites. Security Implications Government Service Access: Attempting to log into CRA
The file wasn't born from a single hack. It was a "combo"—a Frankenstein’s monster stitched together from various data breaches over the years. A forgotten fitness app breach here, a leaked forum database there. The "HQ" (High Quality) tag meant the data was fresh; these weren't old, expired passwords. They were the active keys to Canadian bank accounts, streaming services, and retail profiles.
⚠️ If you find such a file in the wild:
Are you looking to protect a or an enterprise network ?
Best practices for enforcing across an organization Share public link
In March 2025, the OPC introduced the "Real Risk of Significant Harm Assessment Tool" to help organizations determine their reporting obligations. Organizations must also: