Industrial espionage is espionage between companies within the same national market in order to gain or compensate for competitive advantages. The information that may be of interest to your competitors and can lead to industrial espionage includes, among other things, financial statements, investment plans, customer lists, supplier lists, technical know-how, and pricing calculations.
If you have the suspicion or certainty that information is leaking from your company, the detectives of the Aaden Corporate Detective Agency Cologne will assist you in identifying the perpetrator and securing court-admissible evidence: +49 221 9859 2399.
According to the study "Industrial Espionage" by Corporate Trust, a consulting firm for security services, in nearly 25 percent of all espionage cases in Germany where a perpetrator could be identified, an employee of the affected company was responsible. The deliberate placement of employees by competing companies is also subject to criminal prosecution. In the event of detection by the detectives of the Aaden Corporate Detective Agency Cologne, you can not only stop your competitor’s unfair practices but also pursue criminal charges and claim damages (including for the necessity of the detective operation and the resulting costs). In view of a possible reduction in sentence, the exposed employee will generally be willing to testify against your competitor.
An interesting article by Gabriele Lüke on the subject of industrial espionage can be found at the Chamber of Industry and Commerce Munich.
Just as with the prohibition of competitive activity during an existing employment relationship (non-compete clause), confidentiality is an ancillary duty arising from the employment contract. This duty does not need to be explicitly stated in the contract but is generally assumed. An employee who violates this duty of confidentiality by disclosing secrets is liable to prosecution under Section 17 (1) of the German Act Against Unfair Competition (UWG):
"Anyone employed by a company who, during the term of the employment relationship, discloses a business or trade secret entrusted to them or otherwise made accessible to them, without authorization to another person for purposes of competition, for personal gain, for the benefit of a third party, or with the intent to harm the company, shall be punished with imprisonment of up to three years or a monetary fine."

Anyone actively engaging in industrial espionage commits a criminal offense—this is obvious. However, anyone who violates their automatic duty of confidentiality as an employee by disclosing secrets also risks imprisonment.
From a criminal law perspective, the following additional offenses are distinguished in connection with corporate espionage:
(Source: Wirtschaftslexikon24)