Stalking is a real problem in the UK - in the last year, 4% of women and 3% of men reported having experienced stalking (Crime Survey for England and Wales 2011/12). For those affected it can have serious and long term impact.
Today, around half of all stalkers are ex-partners, and up to one in four of the population have suffered from being stalked. So many people start relationships not realising that the particular kind of possessive love exhibited by obsessional lovers, could turn romance into a nightmare.
'Trolling' is not a new phenomenon. In fact I'm sure it is a practice which has existed ever since remote communication began. And the trollers have a tool which is even more powerful, and far more established, with which to terrorise their victims - the withheld number.
Several companies have launched apps which give full access to smartphones or computers, allowing snoopers to see text messages, emails and photographs, listen to phone calls and even activate phones to listen to sounds around the handset even when it is not in use.
Stalking is an anti-social and unacceptable behaviour for civilised society. However, it is also a core characteristic of some addictive processes, such as Sex and Love Addiction where an individual will abandon all sense of self to immerse themselves into the world, or fantasy world, of another.