Cyberstalking

Cyberstalking is the use of the Internet or other electronic means to stalk or harass an individual, group, or organization. It may include false accusations, defamation and libel. It may also include monitoring, identity theft, threats, vandalism, solicitation for sex, or gathering information that may be used to threaten, embarrass or harass. Cyberstalking is often accompanied by realtime or offline stalking. In many jurisdictions, such as California, both are criminal offenses. Both are motivated by a desire to control, intimidate or influence a victim. A stalker may be an online stranger or a person whom the target knows. He may be anonymous and solicit involvement of other people online who do not even know the target. Cyberstalking is a criminal offense under various state anti-stalking, defamation and harassment laws. A conviction can result in a restraining order, probation, or criminal penalties against the assailant, including jail.

Stalking by strangers
According to Joey Rushing, a District Attorney of Franklin County, Alabama, there isn't a single definition of a cyberstalker, and they can be either strangers to the victim or have a former/present relationship. "[Cyberstalkers] come in all shapes, sizes, ages and backgrounds. They patrol Web sites looking for an opportunity to take advantage of people."

Gender-based stalking
Harassment and stalking because of gender online is common, and can include rape threats    and other threats of violence, as well as the posting of the victim's personal information. It is blamed for limiting victims' activities online or driving them offline entirely, thereby impeding their participation in online life and undermining their autonomy, dignity, identity, and opportunities.

Of intimate partners
Cyberstalking of intimate partners is the online harassment of a current or former romantic partner. It is a form of domestic violence, and experts say its purpose is to control the victim in order to encourage social isolation and create dependency. Harassers may send repeated insulting or threatening e-mails to their victims, monitor or disrupt their victims' e-mail use, and use the victim's account to send e-mails to others posing as the victim or to purchase goods or services the victim does not want. They may also use the Internet to research and compile personal information about the victim, to use in order to harass him or her.

Of celebrities and public persons
Profiling of stalkers shows that almost always they stalk someone they know or, via delusion, think they know, as is the case with stalkers of celebrities or public persons in which the stalkers feel they know the celebrity even though the celebrity does not know them. As part of the risk they take for being in the public eye, celebrities and public figures are often targets of lies or made-up stories in tabloids as well as by stalkers, some even seeming to be fans.

In one noted case in 2011, actress Patricia Arquette quit Facebook after alleged cyberstalking. In her last post, Arquette explained that her security warned her Facebook friends to never accept friend requests from people they do not actually know. Arquette stressed that just because people seemed to be fans did not mean they were safe. The media issued a statement that Arquette planned to communicate with fans exclusively through her Twitter account in the future.

By anonymous online mobs
Web 2.0 technologies have enabled online groups of anonymous people to self-organize to target individuals with online defamation, threats of violence and technology-based attacks. These include publishing lies and doctored photographs, threats of rape and other violence, posting sensitive personal information about victims, e-mailing damaging statements about victims to their employers, and manipulating search engines to make damaging material about the victim more prominent. Victims frequently respond by adopting pseudonyms or going offline entirely.

Experts attribute the destructive nature of anonymous online mobs to group dynamics, saying that groups with homogeneous views tend to become more extreme. As members reinforce each others' beliefs, they fail to see themselves as individuals and lose a sense of personal responsibility for their destructive acts. In doing so they dehumanize their victims, becoming more aggressive when they believe they are supported by authority figures. Internet service providers and website owners are sometimes blamed for not speaking out against this type of harassment.

A notable example of online mob harassment was the experience of American software developer and blogger Kathy Sierra. In 2007 a group of anonymous individuals attacked Sierra, threatening her with rape and strangulation, publishing her home address and Social Security number, and posting doctored photographs of her. Frightened, Sierra cancelled her speaking engagements and shut down her blog, writing "I will never feel the same. I will never be the same."

Corporate cyberstalking
Corporate cyberstalking is when a company harasses an individual online, or an individual or group of individuals harasses an organization. Motives for corporate cyberstalking are ideological, or include a desire for financial gain or revenge.