Private Salary Data exchange with colleagues is no longer a taboo.
Many workers prefer to keep it for themselves - but who wants, can freely talk to colleagues about his salary.
The boss can not force anybody to secrecy, now ruled by a court in germany.
Quote: "You cannot forbid employees – either verbally or in written policy – from discussing salaries or other job conditions among themselves.
Discussing salaries is considered a “protected concerted activity” by the NLRB and it’s protected regardless of whether employees are talking to each other in person or through social media."
Keep this in mind.