Detecting a MITM attack can be challenging, but there are several signs to look out for:
- Unexpected Login Alerts: Receiving alerts for logins from unfamiliar locations or devices. - Unusual Email Activity: Noticing emails in your sent folder that you did not send. - Changes in Email Content: Finding that the content of your emails has been altered without your knowledge. - Customer Complaints: Receiving complaints from customers about spam or phishing emails originating from your domain.