Unless protected by a login, a website is public. As such, any individual, company, or corporation can view it, and can use bots to index it or to determine whether their intellectual property is being used without permission. There is no breaking in into your business and stealing information.
It never ceases to amaze me that business people who obviously will not be giving away their products for free, want attorneys to give their services for free, and would even rely on advice that does not consider all the facts.
You really need to retain an attorney.
Deferred action give you no status, and is not a path to citizenship. Whether you can adjust status depends on why the I-485 was denied.
You should retain an experienced immigration lawyer, whether myself or one of my colleagues, to review all the facts, advise you, and handle the case.