Hacktivists from the emerging Mysterious Team Bangladesh (MTB) have significantly ramped up activity over the last year, reaching over 840 attacks globally. Mysterious Team Bangladesh was founded back in 2020 but only recently started making waves in the last year after launching cyber-attacks against high-level targets in Israel, India, and other countries, including government institutions, financial operations, and transportation organizations. Since June 2022, Mysterious Team Bangladesh actors have launched more than 750 distributed denial of service (DDoS) attacks against numerous entities, alongside seventy-eight (78) website defacements to date. After a successful attack against a targeted entity, these hacktivists will often post exfiltrated data within their Telegram channel. Security researchers believe that the actor “D4RK_TSN” (a.k.a “jisan417”) is the founder of Mysterious Team Bangladesh according to numerous open-source intelligence sources. Recent cyber campaigns from the group have targeted organizations throughout Senegal, Ethiopia, Australia, Netherlands, and have caused disruptions to network services and occasionally website defacement. Activity from the group is predicted to continue on-trend and pick up over the next several months. CTIX continues to monitor threat actor activity worldwide and will provide additional updates accordingly.