In this day and age, almost everyone is aware of the absence of security on the internet. Facebook posts have been used to convict criminals and insurance frauds. The text and instant messages of the rapists of Jane Doe of Steubenville were used to convict them.
While the types of messages that we send every day are not of the type that might get us convicted in court, it is still the safest thing to do to use a secure instant messaging network. The number and skill of hackers everywhere is growing. Companies that you work for can sometimes even scour your social networking for posts that do not represent the company well. People have been known to be fired for that reason.
Therefore, it really is in your interests to use secure instant messaging networks, and privacy settings whenever possible. We all know there is absolutely no way to not be able to completely be politically correct at all times and with the amount of interaction on the social networks we now do, it is best to use security. All types of documents can be sent via instant secure messaging. There really is no limit to the type and quantity. However, you can be sure that they will be secure.