Question about Skype security?

[Fred Bloggs]

Phone the other half and say you will send the password to unzip the zipped file by SMS and you will email the drop box password, then SMS the password with no context and email the dropbox password with no context. Then zip up the file with a strong password, place on dropbox with a strong password protected access and email the password.

Send the private link to dropbox via skype.

Then only someone with access to your SMS, email, phone and Skype will be able to gain access to the file easily.

Thanks.