The Federal Bureau of Investigation is investigating the “cybersecurity event” that plagued Hawaiian Airlines for at least three days last week as part of the alleged actions of an international group of cyber-thieves known as Scattered Spider.

The FBI has warned airlines that they are vulnerable to security attacks. Here's what travelers need to know before their next trip.

A cybercrime organization known as “Scattered Spider” has been targeting airlines based in North America in recent weeks, attempting to gain access to sensitive data for purposes of extortion, the FBI confirmed.