Fetching details from the dictionary...

to take possession of (forcibly); to take over (a company, account, etc.); to capture (a castle, enemy position, etc.); to seize; to occupy; to usurp
to hijack (a plane, ship, etc.)
敵対的買収で会社を乗っ取ろうとする動きがある。
There are attempts to take over the company through hostile acquisition.
テロリストが飛行機を乗っ取ろうとした。
Terrorists tried to hijack the plane.
ハッカーにアカウントを乗っ取られた。
My account was hacked.