Here I want to mention some popular attacks but I don’t want to give me the name of services because lot of peoples emotions and trust on these services. And second thing these services introducing several techniques with time to make their services more secure.
Credit card:-One Russian attacker (called Maxim) actually managed to intrude into a merchant internet site and obtained 300,000 credit card numbers from its database. He then attempted extortion by demanding protection money ($100,000) from the merchant. The merchant refuses to oblige. Following this, the attacker published about 25,000 of the credit card numbers on the internet!
E-mail site: - In 1999, a Swedish hacker broke into one famous mail website and created a mirror site. This site allowed to anyone to enter mail user’s email id and read his/her emails!
Bank service:- In 1995, A Russian hacker broke into one x bank’s computers remotely, stealing $12million.Although the attacker was traced, it was very difficult to get him extradited from the court case.
Some internet sites: - In year 2000, there was an attack against six popular internet sites where authorized user of these sites failed to login or access these sites.
In 2005 as independent survey was conducted to invite people’s opinions about the losses that occur due to successful attacks on security, the survey pegged the losses at an average of $455,848,000. Next year, this figure reduced to 4201,757,340!