On Monday, Killnet listed multiple airport websites in the U.S. as targets, according to reports.
Hartsfield-Jackson said it is investigating the cause. “We’re looking into it,” said airport spokesman Andrew Gobeil.
Such cyberattacks known as “distributed denial-of-service” attacks against websites “are notoriously easy and cheap to perform and more difficult to stop,” according to cybersecurity expert Roger Grimes.
The attacks on airport websites had minimal impact, but the goal of the hackers was to “try and spread fear and confusion,” according to Cybereason director of security strategy Ken Westin. “What we should be concerned about is that cyberattacks can escalate quickly,” he added.
The City of Atlanta was hit by a cyberattack in 2018. At the time Hartsfield-Jackson, which is owned and operated by the City of Atlanta, responded by temporarily shutting down its Wi-Fi and turning off tools on its website such as flight information and security wait times.