Re: Computer misuse
Computer Misuse Act, 1990. Section 1
Unauthorised access to computer material.
(1)A person is guilty of an offence if—
(a)he causes a computer to perform any function with intent to secure access to any program or data held in any computer [F1, or to enable any such access to be secured] ;
(b)the access he intends to secure [F2, or to enable to be secured,] is unauthorised; and
(c)he knows at the time when he causes the computer to perform the function that that is the case.
(2)The intent a person has to have to commit an offence under this section need not be directed at—
(a)any particular program or data;
(b)a program or data of any particular kind; or
(c)a program or data held in any particular computer.
Possibly section 3 as well, but that may depend on the EULA
I must admit, I deleted the Facebook App sometime ago and despite their nagging website I refuse to install it.
IANAL - I wish I was though!