A personal, private reference code, file name, or login identifier. A specific error code, log entry, or database key.
Yahoo Mail similarly anchored early internet communication. While it lost significant market share to Gmail over the last two decades, billions of legacy accounts remain active or tied to old subscription systems, frequently appearing in older internet database files. Cyber Security Risks and OSINT
: If your personal information appears in such a list, you can often request removal through the hosting site’s webmaster or by using tools like the Google Content Removal Tool . PSI/sample_sets/emails_alice.txt at master - GitHub
[Exposed Raw Text Data] │ ├─► Automated Scraping (Bots harvest name + domain strings) │ ├─► Target Profiling (Correlating "Mohammed" with legacy domains) │ └─► Exploitation Phase (Phishing, credential stuffing, spam) 1. Automated Scraper Harvesting
Best practices today include:
This is one of the most common names globally. In the world of data breaches, usernames or email prefixes often start with common names. Its presence here suggests a list indexed by name or a specific subset of a database.
Cybercriminals who successfully access an account often set up silent email forwarding rules to intercept your future security codes. Check your email settings to confirm no unknown addresses are receiving your mail.
: Adding a second layer of security (like an authenticator app or security key) prevents unauthorized access even if your password is leaked.
: One of the most common first names globally. In data dumps or email indexes, searching for a popular name is a common way to test the depth or validity of a leaked or public directory. mohammed yahoocom hotmailcom txt 3013
Searching for terms like "yahoo 2013 txt" also leads to a much larger and more devastating event. This was the , which the company finally confirmed in December 2016. Unlike the 2012 leak, this was not a "small" hack of a subdomain—it was a full-scale infrastructure breach affecting all three billion user accounts that existed at that time. This single breach remains the largest data leak in human history.
In the early days of search engines, searching for a phrase like would have yielded zero results. Today, it represents a specific, hyper-niche footprint typical of backend server logs, data scraping dumps, or legacy networking directory files.
If you encountered this string while searching for your own information, it may indicate your data was part of a historical breach.
A file named accounts_3013.txt containing “mohammed” with Yahoo/Hotmail entries would fit this pattern. A personal, private reference code, file name, or
The string is a highly specific, fragmented search pattern that usually indicates someone is searching for data dumps, legacy email lists, or network registration files leaked online or stored in public archives. It represents a combination of a common name (Mohammed), legacy email domains (Yahoo and Hotmail), a file format extension (.txt), and a unique numerical identifier (3013), which often points to data indexes or old Autonomous System Number (ASN) logs.
These specific text strings are usually found in the following types of online documents:
The combination of an email address and a specific code (TXT 3013) might be part of a verification or authentication process. For example, a service might send a verification code to a user's phone or another email address as a way to confirm identity or activate an account.