Lonk cloaking is one of the black hat SEO.

Black hat SEO work against with search engine.

black hat SEO techniques include keyword stuffing, invisible text, doorway pages, adding unrelated keywords to the page content or page swapping (changing the webpage entirely after it has been ranked by search engines).

In search engine optimization (SEO) terminology, black hat SEO refers to the use of aggressive SEO strategies, techniques and tactics that focus only on search engines and not a human audience, and usually does not obey search engines guidelines.

Great question ..This should be asked before getting into black hat seo..Spamming technique is otherwise known as blackhat methods..These are the following techniques used now a days..
KEYWORD STUFFING,
SPAM COMMENTING,
INVISIBLE TEXTS ,
ARTICLE SPINNING,
DUPLICATE CONTENT,
CLOAKING,
but if u use these techniques they are usually detected sooner or later and your page rank may get lower also be banned..Better advise is use greyhat technique..

Black hat seo is spamming and illegal technique of seo that google is not allowed. Sole black hat strategies are: Duplicate content, Keyword stuffing, Clocking etc...

Black hat SEO refers to a set of practices that are used to increases a site or page's rank in search engines through means that violate the search engines' terms of service. The term "black hat" originated in Western movies to distinguish the "bad guys" from the "good guys," who wore white hats

Black hat SEO refers to a set of practices that are used to increases a site or page's rank in search engines through means that violate the search engines' terms of service. The term "black hat" originated in Western movies to distinguish the "bad guys" from the "good guys," who wore white hats (see white hat SEO). Recently, it's used more commonly to describe computer hackers, virus creators, and those who perform unethical actions with computers.

black hat SEO refers to the use of aggressive SEO strategies, techniques and tactics that focus only on search engines and not a human audience, and usually does not obey search engines guidelines.

techniques are

Content Automation,
Doorway Pages
Hidden Text or Links
Keyword Stuffing
Reporting a Competitor
Sneaky Redirects
Cloaking

In search engine optimization (SEO) terminology, black hat SEO refers to the use of aggressive SEO strategies, techniques and tactics that focus only on search engines and not a human audience, and usually does not obey search engines guidelines.

In search engine optimization (SEO) terminology, black hat SEO refers to the use of aggressive SEO strategies, techniques and tactics that focus only on search engines and not a human audience, and usually does not obey search engines guidelines.

The example of Black hat SEO: Spamming for backlink, AGC, and keyword stuffing

-Keyword Stuffing
-Doorway pages
-Duplicate content
-Cloaking
-Hidden Text

Black hat refers to a set of practices that are used to increase page rank in search engine during means that violate the search engine terms of services.

In search engine optimization (SEO) terminology, black hat SEO refers to the use of aggressive SEO strategies, techniques and tactics that focus only on search engines and not a human audience, and usually does not obey search engines guidelines.