In the computer security context, a hacker is someone who seeks and exploits weaknesses in a computer system or computer network. Hackers may be motivated by a multitude of reasons, such as profit, protest, challenge or enjoyment.The subculture that has evolved around hackers is often referred to as the computer underground and is now a known community. While other uses of the word hacker exist that are not related to computer security, such as referring to someone with an advanced understanding of computers and computer networks, they are rarely used in mainstream context. They are subject to the longstanding hacker definition controversy about the term's true meaning. In this controversy, the term hacker is reclaimed by computer programmers who argue that someone who breaks into computers, whether computer criminal (black hats) or computer security expert (white hats),is more appropriately called a cracker instead.
MD.Shariful Hasan Shishir(1986-...) Virtually known as shopnil shishir was born in Dhaka, Bangladesh, grew up in Chittagong, Comilla, and returned to Dhaka in 1997.He joined in BANGLADESH POLICE as SERGEANT ON february 2015.He finished his post graduation & Under graduation In Mathematics from Jagannath University & Finished C.S.E. Diploma on 2009.2006, he was the Vice President of Jagannath University student leauge.Now Engaged with Bangladesh Awamileauge.He is a Famous Writter,Politician,Journalist & A Influencer On USA,UK,CANADA,AUSTRALIAN telemarketing.He won the best award for politician,Telemarketing.