We all know that when it comes to secrets Apple is an expert, begging its employees not to dish out any secrets on upcoming projects and releases, but it would appear that some Apple employees have found a fourm where they can speak out. 

Claims that in an effort to keep new projects secret, Apple tests the trustworthiness of new employees by getting them to work on 'fake products' have been exposed as groundless, however, Apple staff have witnessed "lockdowns" where a part of the floor or office is surrounded by security personnel - usually outside contractors with backgrounds in the military, CIA, or FBI – as Apple tries to discover the source of a leak.

Apple even has guidelines for bloggers who are employed by Apple. In the document, Apple outlines the conduct that it expects from employees when using social media and blogs. "If you identify yourself as an Apple employee or are known to be one, you are now connected to your co-workers, Leaders and even Apple’s customers. You should ensure that content associated with you is consistent with Apple policies," says the document, which was leaked in 2011.

Despite this, according to reports, former employees have found a way to reveal some information to the public. They are using a website called Quora and on a thread called "How does Apple keep it's secrets so well?" you will find quite a lot of interesting information.

Here is an interesting snippet, written by a former employee who wants to remain anonymous:

"All prototypes are laser marked with serial numbers and tracked by a central tracking system (called iTrack). Physical security is also highly prioritized, with prototypes required to be locked up when not in use. Access to prototypes is also restricted, and the default assumption within the company is that your coworkers do not know what you're working on."

The employee adds: "Physical access to the areas of certain groups (product design, industrial design and reliability) is highly restricted by badge access. The most sensitive areas, such as the Industrial Design Studio, have receptionists, external cameras to screen guests, and require an escort to vouch for you. Within these areas and groups, knowledge of the product pipeline and access to prototypes is widespread, but that knowledge doesn't leave the group."

Another former employee, Brian Hoshi, answered the question, without revealing any of Apple's secrets. He said: "Having worked at Apple for a few years, I can say that the need for secrecy is mostly ingrained in the corporate culture to create innovative and revolutionary products from within the otherwise bland and evolutionary markets that Apple chooses to compete in. The secrecy is upheld throughout the organization knowing that there is a corporate security team pretty much looking over your shoulder at all times and where even minor violations are grounds for immediate termination. There's nothing to "fear" at Apple as long as you are able to follow these very basic rules of conduct."

You can read more snippets in Business Insider's report.

Make sure to check Quora to get your hands on some leaked information and read through people's stories about their time were working at Apple.

Marcelina Zwegrodzka is the author of this Apple blog.  

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