A Cyber Attack is any
type of offensive maneuver that targets computer information systems,
infrastructures, computer networks, or personal computer devices.
Cyberattack could be employed by nation-states, individuals, groups,
society or organizations. A cyberattack may originate from an anonymous
source. An cyberattack may steal, alter, or destroy a specified target
by hacking into a susceptible system.
1. WannaCry Ransomware Attack (Friday, 12 May 2017):
The WannaCry ransomware attack was
a May 2017 worldwide cyber attack by the
WannaCry ransomware cryptoworm, which targeted computers running
the Microsoft Windows operating system by encrypting data and demanding
ransom payments in the Bitcoin cryptocurrency.
The attack was stopped within a few days
of its discovery due to emergency patches released by Microsoft, and the
discovery of a kill switch that prevented infected computers from
spreading WannaCry further. The attack was estimated to have affected
more than 200,000 computers across 150 countries, with total damages
ranging from hundreds of millions to billions of dollars.
2. Attack on Adobe (2013) :
Hackers obtained access to Adobe’s
networks and stole user information and downloaded the source code for
some of Adobe programs. It attacked 150 million customers.
3. Attack On Yahoo (2012) :
Hackers posted login credentials for more than 453,000 user accounts. Again in January 2013 and January 2014.
4. Attack On Google (2009) :
In 2009, the Chinese hackers breached
Google’s corporate servers gained access to a database containing
classified information about suspected spies, agents, and terrorists
under surveillance by the US government.
5. MasterCard (2005) :
The company announced that up to 40
million cardholders may have had account information stolen due to one
of its payment processors being hacked.