E-mail is probably one of the most convenient and easiest ways for us to communicate, however, it is not a secure means of sending information. You should avoid sending sensitive data or information (i.e. a w9 that has your social security number of EIN on it) in an email.
According to one security expert Dr. Catherine J. Ullman, “Email by default is not and was never intended to be a secure mechanism for sending sensitive data.” Emails can be intercepted by bad actors on the web, and they can easily see any attachments.
If you can’t email your W9, then how should you share it with someone requesting it from you? You should use encrypted or secure file transmission services, or ask the requester to utilize an online service, such as https://getw9.tax, to collect & store W-9s.
If you have any other questions regarding the W-9, please feel free to email us at email@example.com!
Vic @ getW9