An anonymous hacker group is claiming responsibility for a series of security breaches at some of the largest social networking networks.
The group posted the full source code of the attack on its website Monday, saying it had hacked “major” websites and was responsible for “the majority of the data breaches that took place during the last year.”
The hackers said the data thefts had taken place from July 2018 to August 2020.
They also said they were not affiliated with a group known as Anonymous.
“This attack is a direct result of the lack of cybersecurity in the industry and a lack of transparency and security on the part of the security teams,” the group said.
“The attackers have compromised over 600 sites and more than $200 million worth of data.”
Hackers said they used a variety of exploits to gain access to the networks of a number of social networks.
One of the sites the hackers breached was the Instagram page of actor Alyssa Milano, who was widely known for her work in television, movies and TV shows.
The hackers said they then used “some of the most advanced and sophisticated tools” available on the internet to compromise the sites and steal their data.
“I was able to access the servers of the company and steal data from them, as well as other data like credit card information,” the hacker wrote in a blog post.
“The company has taken the necessary steps to stop the breach by removing the malicious software from the systems and restoring the accounts.”
The group said it had previously breached the Twitter account of actor Robert Pattinson, who plays the lead character in the Netflix series House of Cards.
Hackers have previously released malware to gain control over systems and databases at companies like Target, Target’s parent company, and Microsoft.