Update on threats to Czech infrastructure. Relief funds looted. PoetRAT vs. ICS. CISA updates essential workforce guidelines. Data breaches. Zoom-bombing.

A wave of attacks against hospitals and infrastructure in the Czech Republic seems to have been largely unsuccessful, but more may be on their way. German relief funds earmarked for small business are looted by cybercrooks. PoetRAT is active against ICS targets in Azerbaijan. CISA updates its Guidance on the Essential Critical Infrastructure Workforce. Breaches at Cognizant, Aptoide, and Webkinz World. And more Zoom-bombing. David Dufour from Webroot on AI and machine learning, guest is Kelly White of Mastercard’s RiskRecon on how one of their healthcare customers is tracking COVID-19 infections. For links to all of today's stories check out our CyberWire daily news brief: https://thecyberwire.com/issues/issues2020/April/CyberWire_2020_04_20.html