What is Black Hat SEO ..?

Black Hat SEO

•  The term "Black hat" originated in Western movies to distinguish the "Bad guys"."Black Hat SEO" is used to get higher search rankings in an "Unethical manner".

• Recently, it's used more commonly by virus creators, computer hackers, and those who perform unethical actions with computers.

• Black Hat SEO Tactics :

1. Content Automation
2. Doorway Pages
3. Hidden Text or Links
4. Keyword Stuffing
5. Reporting a Competitor
6. Sneaky Redirects 
7. Cloaking

• Black Hat SEO Techniques :

1. Creating pages, sub domains, or domains with duplicate content.
2. Automated Queries to Google.
3. Rich Snippet Markup Spam.
4. Pages with malicious behavior, such as phishing, viruses, trojans, and other malware.

Note : Black Hat tactics can get your website banned from Google and other search engines.Though there may be some short term success through increased traffic to your site but it's not good for you.

-> I suggest "White Hat SEO" though it takes more time to increased traffic but it's safe then "Black Hat SEO".