Non-compete breach requires actual competing activity targeting same customers, not just similar services.

The Supreme Court partially allowed the cassation appeal, remanding the case for a new decision on the contractual penalty. The lower court found a breach because the employee's publishing business was similar to the employer's printing services, but the Supreme Court ruled that only actual competing activity targeting the same customer circle constitutes a violation. The court emphasized that mere similarity in service types without overlapping clientele does not threaten the employer's interests.