Prior to uploading sensitive information, it is always a good idea to protect your documents with an encrypted password. Anything the internet risks being found by search engines, which is good for driving traffic to your website, but you'll want to protect sensitive data, customer information, email addresses, etc.
For instructions on Microsoft Word, Excel and PowerPoint documents, please visit this link:
For instructions on how to Protect your Excel Workbook with an encrypted password please visit this link:
If you prefer video instructions, please visit this link:
For instructions on how to encrypt PDF docs using Microsoft Word: