Writing in an email, GhostSec commented about a lawsuit brought against the micro-blogging site in which a woman who lost her husband during a militant attack, blames the platform for the growth of Isis, also known as Isil and Daesh.
The email, signed by @_Ransacker, stated: "...while it may be difficult to hold Twitter legally responsible for the death of the woman's husband, I do think that Twitter and most other social media platforms have been too slow in dealing with ISIS and other terror groups. "
Legal experts believe the case is unlikely to succeed. According to the Wall Street Journal, Twitter, Facebook and YouTube are covered by a section of the Communications Decency Act in the U.S.
Section 230 exempts services, including social media platforms, from being responsible for the actions of their users.
In response to the lawsuit, Twitter told the Huffington Post: "Violent threats and the promotion of terrorism deserve no place on Twitter and, like other social networks, our rules make that clear.
"We have teams around the world actively investigating reports of rule violations, identifying violating conduct, partnering with organizations countering extremist content online, and working with law enforcement entities when appropriate.”
GhostSec also said companies, such as CloudFlare, (which makes sites more secure) "need to take more responsibility for the fact that they provide services to Isis."