msenum is an open-source reconnaissance tool for large-scale Microsoft account enumeration. It exploits endpoint(s) that lack proper rate limiting, allowing the enumeration of thousands of accounts per second.

1. Clone the repository:

git clone https://github.com/connorjaydunn/msenum.git

2. Navigate to the project directory:

cd msenum

3. Install the dependencies:

pip install -r requirements.txt

To view all available options and parameters, run:

python msenum.py -h

python msenum.py -f emails.txt -o valid_msa.txt -c 20

This will:

• Check emails from emails.txt for Microsoft accounts,
• Output Microsoft accounts to valid_msa.txt,
• Use up to 20 concurrent requests.

The developer is not responsible for any illegal use. By using this software, you agree to use it responsibly and legally, and assume full responsibility for any consequences that may arise.