ISC Stormcast for 20 April 2026 continues the Monday briefing and is hosted by Handler on Duty Xavier Mertens. The threat level is shown as green, signalling a relatively low level of active danger at the time of the recording. The diary promotes further information, including a link to learn more about classes Johannes Ullrich is teaching for SANS. Readers are reminded of the various ISC sections and resources available, such as diaries, podcasts and data pages, which are listed on the ISC site.
The entry also highlights a podcast detail page, underscoring that the briefing is part of the ISC’s ongoing weekly publications. According to SANS, the diary and its contents form part of the ISC Stormcast updates issued by the Internet Storm Center.