Additionally, someone found a URL and registered that domain, so the WannaCry ransomware can connect to and stops spreading.
Malware protection seems to block access, LMAO.
(german) https://www.heise.de/newsticker/meldung/Ransomware-WannaCry-Sicherheitsexperte-findet-Kill-Switch-durch-Zufall-3713420.html