Ncsc mailcheck

NCSC MailCheck is a free online tool provided by the National Cyber Security Centre (NCSC) in the United Kingdom. It's designed to help individuals and organizations check the security of their email addresses and prevent them from being used by cybercriminals.

Here's how it works:

  1. Enter your email address in the MailCheck tool.
  2. The tool will scan your email address against a database of known malicious domains and IP addresses.
  3. If your email address is found to be associated with a malicious domain or IP address, the tool will alert you and provide guidance on how to secure your email address.

The tool checks for several types of malicious activity, including:

  1. Phishing: The tool checks if your email address has been used in phishing attacks or is associated with known phishing domains.
  2. Spam: The tool checks if your email address is being used to send spam emails or is associated with known spamming IP addresses.
  3. Malware: The tool checks if your email address is being used to distribute malware or is associated with known malware-infected domains.
  4. Command and Control (C2) servers: The tool checks if your email address is being used as a C2 server, which is a server used by attackers to control compromised devices.

By using MailCheck, you can:

  1. Identify potential security risks associated with your email address.
  2. Take steps to secure your email address and prevent it from being used by cybercriminals.
  3. Reduce the risk of your email account being compromised or used for malicious activities.

It's worth noting that MailCheck is not a substitute for regular email security best practices, such as using strong passwords, enabling two-factor authentication, and being cautious when clicking on links or downloading attachments from unknown sources.