noun
unauthorized access; hacking
Computing term for accessing a computer system or network without permission. Often used in legal and security contexts.
不正アクセス禁止法は、他人のIDやパスワードを無断で使う行為を罰する。
The Unauthorized Access Prohibition Law punishes the act of using another person's ID or password without permission.
サーバーへの不正アクセスが相次いでいる。
There have been a series of unauthorized accesses to the server.