The website, (www.callcenter.piac.com.pk) is the domain of the airport’s call center.
According to thehackerspost, how the hackers intruded the website is not yet clarified. And yes, it is a big slap on the cyber security team of the airport.
Still, in the time of publication, the defacement of the hacker which only include the greetings of the hackers to his fellow hackers can be seen.