(KTLA) — A teenager accused of involvement in a massive and "sophisticated" cyberattack that cost multiple Las Vegas casino properties hundreds of millions of dollars is in custody, authorities announced late last week.

The costly scheme played out in 2023, between August and October, the Las Vegas Metropolitan Police Department said in a Sept. 19 news release.

The alleged cyber intrusions were attributed to an organized threat-actor group that goes by the names “Scattered Spider,” “Octo Tempest,” “UNC3944” and “Oktapus.”

As far as cyber-heists go, the scheme the hackers used on MGM Resorts, which operates MGM Grand, the Cosmopolitan, Bellagio, Luxor and Excalibur, was remarkably simple.

Utilizing LinkedIn, a hacker impersonated an........

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