TP CERT (Computer Emergency Response Team) ensures the safety of users of the Polish telecommunications network. The activity of TP CERT is to monitor threats to the security systems connected to the TP network (IP address space allocated to TP: AS5617, AS29535, AS33900 - RIPE NCC) and responding to detected threats, especially in incidents reported by users. The main task of the team is to take the necessary actions in cases of cyber-security threats.