Biggest Cyber Attack in Last 5 Years

One of the biggest cyber attacks in the last 5 years was the WannaCry ransomware attack that took place in May 2017. The attack affected more than 200,000 computers in 150 countries, causing widespread disruption to businesses and individuals.

WannaCry exploited a vulnerability in Microsoft Windows, allowing the malware to spread rapidly across networks. Once a computer was infected, the malware encrypted files on the computer and demanded payment in Bitcoin to restore access to the files. The attack affected organizations in a variety of industries, including healthcare, transportation, and government.

The attack was particularly disruptive for the National Health Service (NHS) in the United Kingdom, where many hospitals and clinics were forced to cancel appointments and divert patients to other facilities. It was also felt in other countries such as Spain, Russia, and Taiwan.

It was later revealed that the malware was developed by a North Korean hacking group known as Lazarus, and it had been stolen from the US National Security Agency (NSA) and leaked online.

WannaCry was a reminder of the need for organizations to patch vulnerabilities in a timely manner and have proper cybersecurity measures in place to protect against malware. It also highlighted the potential consequences of a cyber attack on critical infrastructure.

Another notable attack was the SolarWinds hack that took place in December 2020 and was discovered in December 2020. It affected various U.S. government agencies, as well as private companies, including major technology firms. The attackers used a supply-chain attack to compromise the software updates of a company called SolarWinds, which provides network management software to organizations around the world. The attackers then used this access to infiltrate the networks of the organizations that use the software and steal sensitive information. It is believed that Russian state-sponsored hackers were behind this attack.

In summary, the WannaCry ransomware attack in May 2017 and the SolarWinds hack in December 2020 are among the biggest cyber attacks in the last 5 years. Both attacks caused widespread disruption and highlighted the need for organizations to have proper cybersecurity measures in place to protect against malware and supply chain attacks.

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