What is an act of unfair competition?

According to the polish provisions of the Act of 16 April 1993 on combating unfair competition   (Dz.U. 2003 Nr 153 poz. 1503):

“An act of unfair competition action is contrary to law or morality, if it threatens or infringes the interest of another entrepreneur or customer.
Acts of unfair competition are, in particular: misleading designation of an enterprise, false or deceptive indication of the geographical origin of goods or services, misleading description of the goods or services in violation of company secrets, incitement to termination or breach of contract, imitation of products, taunt or unfair touting, blocking access to the market, bribery of a public clerk, as well as unfair or prohibited advertising,”