Regardless of your employment status, you have a duty of loyalty to your employer. He must be able to trust you. Even if you haven't signed anything. And even once you are no longer employed!
1. You have several obligations to respect
You must act with loyalty and honesty towards your employer.
That means :
2. You have to, even without a written contract
You have a duty of loyalty to your employer, even without having signed an employment contract.
Your employer may still have you sign a “confidentiality agreement” to ensure that you keep the information to which you have access secret.
This contract creates an additional responsibility that goes beyond the general duty of loyalty to your employer.
3. Your duty continues after employment
Whether you quit or were fired, some aspects of the duty of loyalty continue to exist, either forever or for some time after your employment ends. For example, you must keep information about the reputation or private life of your ex-employer or your ex-colleagues confidential forever.
In addition, you must continue to put the interests of your ex-employer before your own for a reasonable time after your employment ends. This period depends on factors such as the type of position you held before leaving.
Your post-employment obligations may be different if you have signed a confidentiality or non-competition agreement.