Abaddon is considered a annonynous movement especialized in cyber attacks that broadcasts its messages to terrorize people. This group is founded and lead by Leland Schiller, who wants revenge against insurance company Nero for ignoring his pleas for medical treatment on her mother when she was dying permantly.
The Hebrew term Abaddon (language Hebrew: אֲבַדּוֹן, 'Ǎḇaddōn), and its Greek equivalent Apollyon (language Greek: Ἀπολλύων, Apollyon), appears in the Bible as both a place of destruction and as the name of an angel. In the Bible Hebrew Bible, abaddon is used with reference to a bottomless pit, often appearing alongside the place שאול (sheol), meaning the realm of the dead. In the New Testament of Revelation Book of Revelation, an angel called Abaddon is described as the king of an army of locusts; his name is first transcribed in Greek (Revelation 9:11—"whose name in Hebrew is Abaddon" (Ἀβαδδὼν)), and then translated ("which in Greek means the Destroyer" (Ἀπολλύων, Apollyon)). The Latin Vulgate and the Rheims Bible Douay Rheims Bible have additional notes (not present in the Greek text), "in Latin Exterminans", exterminans being the Latin word for "destroyer".