As a basic rule of thumb when you are invited to a party is never disclose information or details to someone not invited... especially someone who may want to crash for dishonorable reasons.
In the event that you do accidentally share party details, the proper thing to do is to contact the host and let them know in advance. This is the best way to prevent any discord between you and the host.
Click below to get our FREE tip sheet on dos and don'ts if you are an uninvited attendee and if you are the host, then how to set boundaries to minimize clash.