The Counter Extremism Project (CEP) reports weekly on the methods used by extremists to exploit the Internet and social media platforms to recruit followers and incite violence. Last week, ISIS supporters circumvented efforts by Telegram to disrupt and slow the spread of ISIS content on its platform and continued to disperse ISIS propaganda using the messaging app’s Telegra.ph feature. Also, a pro-ISIS cyber security group, Electronic Horizons Foundation, released a guide for using the Hoop Messenger platform. Meanwhile, neo-Nazis uploaded a video to Telegram and YouTube of various individuals harassing and threatening Black Lives Matter protesters in Knoxville, Tennessee. Finally, CEP researchers located two videos from the white supremacist group Russian Imperial Movement (RIM) on YouTube as well as a video message from the cofounder of the white supremacist movement, Rise Above Movement (RAM), advocating for white vigilantism.