This research examines the radical religious extremism (RRE) movement's Salafi Jihadism and how it is contaminating Muslims' aqidah, particularly among internet users. This essay examines the idea of Salafi Jihadism, which goes against the notion of Ahl Sunnah wal Jamaah, which is considered to be the core religious conviction of Muslims worldwide, particularly in Malaysia. Given that cyber users are particularly vulnerable to exposure to and influence from Salafi Jihadism, this study aims to comprehend the implications of this ideology in light of the contemporary RRE movement, which takes advantage of the development of the internet. This qualitative study acquired resources especially regarding the narrative of RRE movement which relates to the idea of Salafi Jihadism from printed and online materials, both from primary and secondary sources. This study found that the cyber net users are vulnerable to the RRE ideologies hence it is required to have self-resilience towards any RRE ideologies since this borderless world of the internet is uncontrollable hence posits threat to its users, especially in the weltanschauung of Muslims that adhere to Ahl Sunnah wal Jamaah.